BCCHR Researchers Find a Researcher

Magdalena Janus

PhD, MSc

Investigator, BC Children's Hospital
Sunny Hill BC Leadership Chair in Child Development

My research program aims to address key pressure points at individual, family and community levels, by combining big data methods with qualitative, family-centered approaches, encompassing equity-directed goals to provide a comprehensive picture of healthy child development for all, but especially children with disabilities and complex care needs. It will be conducted in collaboration with HELP UBC and Sunny Hill Health Centre faculty and clinicians, involving community of parents and service providers, and engaging trainees. This innovative alignment of methodologies will advance health research in BC and contribute to continuous and adaptable improvement of the well-being of children with disabilities.

Academic Affiliations

Professor, Division of Developmental Pediatrics, Department of Pediatrics, Faculty of Medicine, University of British Columbia
Research Theme: Brain, Behaviour & Development
Research Group(s): Mental Health and Behaviour; Neurodevelopmental and Neurological Disorders

Contact Information

Location

470 -2206 East Mall, Vancouver, BC, Canada, V6T1Z3

magdalena.janus@ubc.ca

Equity From the Start

Outpatient Care Before and After Mental Health Hospitalization for Adolescents From Immigrant, Refugee and Non-immigrant Backgrounds in British Columbia: A Retrospective Cohort Study: Soins en consultation externe avant et aprs une hospitalisation en sant mentale pour les adolescents, issus ou non de limmigration ou rfugis, en Colombie-Britannique: Une tude de cohorte rtrospective

The Canadian Journal of Psychiatry

Anne Gadermann and Monique Gagn Petteni and Carly Magee and Magdalena Janus and Katholiki Georgiades and Roberto Sassi and Martin Guhn and Joseph H. Puyat

DOI: 10.1177/07067437251372189

02 / 2026

Investigating early childhood mental health with EDI and CHEQ

02 / 2026

Population-level data for children with developmental disabilities: challenge, reality, and inspiration.

02 / 2026

Poverty type, immigration background, and secondary school academic outcomes for children in British Columbia

Social Psychology of Education

Randip Gill and Mohammad Ehsanul Karim and Joseph H. Puyat and Monique Gagn Petteni and Martin Guhn and Magdalena Janus and Barry Forer and Anne Gadermann

DOI: 10.1007/s11218-025-10093-x

12 / 2025

Early Years Disrupted: Early Child Development Pre-Post Pandemic

11 / 2025

Monitoring child development in kindergarten: Outcome of early experiences.

OECD

10 / 2025

Parents Perceptions of Childrens Emotions, Parenting Experiences and Relationships Among Food Secure and Food Insecure Families in Atlantic Canada During the COVID-19 Pandemic

Journal of Hunger & Environmental Nutrition

Melissa D Rossiter and De-Lawrence Lamptey and Magdalena Janus and Joan Turner and Jessie-Lee D. McIsaac

DOI: 10.1080/19320248.2025.2483816

09 / 2025

Disparities in Child Development by Maternal Birthplace and Child Sex among Kindergarten Children in Manitoba, Canada: A Population-Based Data Linkage Study

Journal of Immigrant and Minority Health

Marcelo L. Urquia and Andre-Anne Fafard St-Germain and Maria Godoy and Marni Brownell and Magdalena Janus

DOI: 10.1007/s10903-024-01638-x

02 / 2025

Changes in peer belonging, school climate, and the emotional health of immigrant, refugee, and non-immigrant early adolescents

Journal of Adolescence

Kimberly Thomson and Carly Magee and Monique Gagn Petteni and Eva Oberle and Katholiki Georgiades and Kimberly Schonert-Reichl and Magdalena Janus and Martin Guhn and Anne Gadermann

DOI: 10.1002/jad.12390

12 / 2024

Does receipt of social housing impact mental health? Results of a quasi-experimental study in the Greater Toronto Area

Social Science & Medicine

James R. Dunn and Katherine L.W. Smith and Paula Smith and Rahim Moineddin and Flora I. Matheson and Stephen W. Hwang and Carles Muntaner and Magdalena Janus and Patricia O'Campo

DOI: 10.1016/j.socscimed.2024.117363

12 / 2024

Six-year (2016"2022) longitudinal patterns of mental health service utilization rates among children developmentally vulnerable in kindergarten and the COVID-19 pandemic disruption

PLOS Digital Health

Fernanda Talarico and Margaret Isioma Ojeahere and Dan Metes and Mengzhe Wang and Jake Hayward and Yang S. Liu and Julie Tian and Yanbo Zhang and Andrew J. Greenshaw and Ashley Gaskin and Magdalena Janus and Bo Cao

DOI: 10.1371/journal.pdig.0000611

09 / 2024

Relationship between Childhood Disability or Developmental Delay and COVID-19 Pandemic Impacts on Families across the Canadian Maritime Provinces

Journal of Child and Family Studies

De-Lawrence Lamptey and Jessie-Lee D. McIsaac and Madison MacQuarrie and Randi Cummings and Melissa D. Rossiter and Magdalena Janus and Joan Turner

DOI: 10.1007/s10826-023-02779-7

02 / 2024

Psychometrics of psychosocial behavior items under age 6years: Evidence from Nebraska, USA

Infant Mental Health Journal

Marcus R. Waldman and Abbie Raikes and Katelyn Hepworth and Maureen M. Black and Vanessa Cavallera and Tarun Dua and Magdalena Janus and Susanne P. Martin-Herz and Dana C. McCoy and Ann M. Weber

DOI: 10.1002/imhj.22090

01 / 2024

Developmental health of Canadian kindergarten children with teacher-reported asthma between 2010 and 2015: A population-level cross-sectional study

Preventive Medicine Reports

Magdalena Janus and Caroline Reid-Westoby and Molly Pottruff and Michelle Schneeweiss and George Hu and Marni Brownell

DOI: 10.1016/j.pmedr.2023.102525

01 / 2024

Association between pregnancy planning or intention and early child development: A systematic scoping review

PLOS Global Public Health

Jorge Andrs Delgado-Ron and Colleen M. Davison and Magdalena Janus

DOI: 10.1371/journal.pgph.0002636

12 / 2023

A cross-sectional study of organized activity participation and emotional wellbeing among non-immigrant and immigrant-origin children in British Columbia, Canada

Preventive Medicine Reports

Albanese, C.M. and Oberle, E. and Sutherland, J.M. and Janus, M. and Schonert-Reichl, K.A. and Georgiades, K. and Guhn, M. and Gagn{\'e} Petteni, M. and Gadermann, A.

DOI: 10.1016/j.pmedr.2022.102052

Predictive Validity of the Infant Toddler Checklist in Primary Care at the 18-month Visit and School Readiness at 4 to 6 Years

Academic Pediatrics

Nurse, K.M. and Janus, M. and Birken, C.S. and Keown-Stoneman, C.D.G. and Omand, J.A. and Maguire, J.L. and Reid-Westoby, C. and Duku, E. and Mamdani, M. and Tremblay, M.S. and Parkin, P.C. and Borkhoff, C.M.

DOI: 10.1016/j.acap.2022.09.004

Neighbourhood context and diagnosed mental health conditions among immigrant and non-immigrant youth: a population-based cohort study in British Columbia, Canada

Social Psychiatry and Psychiatric Epidemiology

Emerson, S.D. and Petteni, M.G. and Puyat, J.H. and Guhn, M. and Georgiades, K. and Milbrath, C. and Janus, M. and Gadermann, A.M.

DOI: 10.1007/s00127-022-02301-2

From Full Day Learning to 30 Minutes a Day: A Descriptive Study of Early Learning During the First COVID-19 Pandemic School Shutdown in Ontario

Early Childhood Education Journal

Spadafora, N. and Reid-Westoby, C. and Pottruff, M. and Wang, J. and Janus, M.

DOI: 10.1007/s10643-021-01304-z

Shifting play experiences during the COVID-19 pandemic: family responses to pandemic restrictions

European Early Childhood Education Research Journal

McIsaac, J.-L.D. and Cummings, R. and MacQuarrie, M. and Lamptey, D.-L. and Harley, J. and Rossiter, M.D. and Janus, M. and Turner, J.

DOI: 10.1080/1350293X.2023.2227370

Relative Importance of Well-Being Determinants in Atlantic Canadian Families During the Pandemic

Inquiry (United States)

Hill, T.G. and McIsaac, J.-L.D. and Janus, M. and Lamptey, D.-L. and Rossiter, M.D. and Turner, J.

DOI: 10.1177/00469580231184326

Examination of school readiness and factors related to developmental vulnerability in children born very low birth weight

Child: Care, Health and Development

Bando, N. and Walton, K. and O{'}Connor, D.L. and Janus, M. and Unger, S.L.

DOI: 10.1111/cch.13058

The creation of the Global Scales for Early Development (GSED) for children aged 0-3 years: Combining subject matter expert judgements with big data

BMJ Global Health

McCray, G. and McCoy, D. and Kariger, P. and Janus, M. and Black, M.M. and Chang, S.M. and Tofail, F. and Eekhout, I. and Waldman, M. and Van Buuren, S. and Khanam, R. and Sazawal, S. and Nizar, A. and Sch{\"o}nbeck, Y. and Zongo, A. and Brentani, A. and Zhang, Y. and Dua, T. and Cavallera, V. and Raikes, A. and Weber, A.M. and Bromley, K. and Baqui, A. and Dutta, A. and Nisar, I. and Detmar, S.B. and Anago, R. and Mercadante, P. and Jiang, F. and Kaur, R. and Hepworth, K. and Rubio-Codina, M. and Kembou, S.N. and Ahmed, S. and Lancaster, G.A. and Gladstone, M.

DOI: 10.1136/bmjgh-2022-009827

Student achievement trajectories in Ontario: Creating and validating a province-wide, multi-cohort and longitudinal database

International Journal of Population Data Science

Sinclair, J. and Davies, S. and Janus, M.

DOI: 10.23889/ijpds.v8i1.1843

Body Weight at Age Four Years and Readiness to Start School: A Prospective Cohort Study

Childhood Obesity

Omand, J.A. and Li, X. and Keown-Stoneman, C.D.G. and Borkhoff, C.M. and Duku, E. and Lebovic, G. and Maguire, J.L. and Mamdani, M.M. and Parkin, P.C. and Reid-Westoby, C. and Randall Simpson, J. and Tremblay, M.S. and Janus, M. and Birken, C.S.

DOI: 10.1089/chi.2022.0018

Validation of a parent proxy-reported beverage screener compared to a 24-hour dietary recall for the measurement of sugar-containing beverage intake among young children

PLoS ONE

Sharpe, I. and Kirkpatrick, S.I. and Smith, B.T. and Keown-Stoneman, C.D.G. and Omand, J.A. and Vanderhout, S. and Warren, C. and Maguire, J.L. and Birken, C.S. and Anderson, L.N. and Allen, C. and Anderson, L.N. and D{'}Annunzio, D. and Jaleel, M. and Keown-Stoneman, C. and McFarlane, N.L. and Omand, J.A. and Thadani, S. and Aglipay, M. and Bayoumi, I. and Borkhoff, C.M. and Carsley, S. and Charach, A. and Cost, K. and D{'}Hollander, C. and Fuller, A. and Kinlin, L. and Kucab, M. and Li, P. and Parkin, P. and Persaud, N. and Rae, S. and Socynska, I. and Vanderhout, S. and Vanderloo, L. and Wong, P. and Mudiyanselage, P.K. and Li, X. and Liu, J. and Mitchell, M. and Yoshida-Montezuma, Y. and Zaffar, N. and Bondoc, T. and Buckley, T.-A. and Flores, P.R. and Kurt, K. and Loganathan, S. and Mali, T. and Thompson, L. and Batten, J. and Chan, J. and Clark, J. and Craig, A. and De Castris-Garcia, K. and Dharman, S. and Kelleher, S. and Nasser, S. and Pabon, T. and Rhodes, M. and Salsa, R. and Skelding, J. and Stern, D. and Stewart, K. and Tavares, E.S. and Weir, S. and Cho, M.Z. and Janus, M. and Duku, E. and Reid-Westoby, C. and Raso, P. and Offord, A. and Abraham, E. and Ali, S. and Anderson, K. and Arbess, G. and Baker, J. and Barozzino, T. and Bergeron, S. and Bloch, G. and Bonifacio, J. and Bowry, A. and Calpin, C. and Campbell, D. and Cheema, S. and Cheng, E. and Chisamore, B. and Constantin, E. and Danayan, K. and Das, P. and De Guerra, V. and Derocher, M.B. and Do, A. and Doukas, K. and Egger, A. and Farber, A. and Freedman, A. and Freeman, S. and Gazeley, S. and Grewal, K. and Guiang, C. and Ha, D. and Handford, C. and Hanson, L. and Harrington, L. and Jacobson, S. and Jagiello, L. and Jansz, G. and Kadar, P. and Keiswetter, L. and Kiran, T. and Knowles, H. and Kwok, B. and Lahiry, P. and Lakhoo, S. and Lam-Antoniades, M. and Lau, E. and Leduc, D. and Leung, F.-H. and Li, A. and Male, R. and Meret, A. and Mok, E. and Moodie, R. and Nash, K. and Owen, J. and Peer, M. and Perlmutar, M. and Persaud, N. and Pinto, A. and Porepa, M. and Qi, V. and Ramji, N. and Raza, D. and Rouleau, K. and Ruderman, C. and Saunderson, J. and Schiralli, V. and Sgro, M. and Shuja, H. and Siam, F. and Shepherd, S. and Srikanthan, C. and Taylor, C. and Treherne, S. and Turner, S. and Uddin, F. and van den Heuvel, M. and Weisdorf, T. and Yaremko, J. and Ying, E. and Young, E. and Zajdman, M. and Begum, E.A. and Juni, P. and Lakhanpal, G. and Lebovic, G. and Nnorom, I. and Nunez, M.D. and Stitt, A. and Thorpe, K. and Assan, R. and Bondar, H. and Charames, G.S. and Djolovic, A. and Gorscak-Dunn, C. and Hassan, M. and Kandel, R.

DOI: 10.1371/journal.pone.0288768

Positive Parenting and Early Childhood Cognition: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Clinical Child and Family Psychology Review

Prime, H. and Andrews, K. and Markwell, A. and Gonzalez, A. and Janus, M. and Tricco, A.C. and Bennett, T. and Atkinson, L.

DOI: 10.1007/s10567-022-00423-2

Population-Based Teacher-Rated Assessment of Anxiety Among Canadian Kindergarten Children

Child Psychiatry and Human Development

Janus, M. and Ryan, J. and Pottruff, M. and Reid-Westoby, C. and Brownell, M. and Bennett, T. and Birken, C.S. and Duku, E. and Ferro, M.A. and Forer, B. and Georgiades, S. and Gorter, J.W. and Guhn, M. and Maguire, J. and Manson, H. and Pei, J. and Santos, R. and Coplan, R.J.

DOI: 10.1007/s10578-022-01332-9

Feasibility and Potential Benefits of the Observe, Reflect, Improve Childrens Learning (ORICL) Tool: Perspectives of Infant"Toddler Educators

Australasian Journal of Early Childhood

Elwick, S. and Wong, S. and Harrison, L. and Williams, K.E. and McFarland, L. and Dealtry, L. and Janus, M.

DOI: 10.1177/18369391231186169

A Review on Early Intervention Systems

Current Developmental Disorders Reports

Tollan, K. and Jezrawi, R. and Underwood, K. and Janus, M.

DOI: 10.1007/s40474-023-00274-8

Protocol for validation of the Global Scales for Early Development (GSED) for children under 3 years of age in seven countries

BMJ Open

Cavallera, V. and Lancaster, G. and Gladstone, M. and Black, M.M. and McCray, G. and Nizar, A. and Ahmed, S. and Dutta, A. and Anago, R.K.E. and Brentani, A. and Jiang, F. and Sch{\"o}nbeck, Y. and McCoy, D.C. and Kariger, P. and Weber, A.M. and Raikes, A. and Waldman, M. and Van Buuren, S. and Kaur, R. and P{\'e}rez Maillard, M. and Nisar, M.I. and Khanam, R. and Sazawal, S. and Zongo, A. and Pacifico Mercadante, M. and Zhang, Y. and Roy, A.D. and Hepworth, K. and Fink, G. and Rubio-Codina, M. and Tofail, F. and Eekhout, I. and Seiden, J. and Norton, R. and Baqui, A.H. and Khalfan Ali, J. and Zhao, J. and Holzinger, A. and Detmar, S. and Kembou, S.N. and Begum, F. and Mohammed Ali, S. and Jehan, F. and Dua, T. and Janus, M.

DOI: 10.1136/bmjopen-2022-062562

Feasibility and initial psychometric properties of the observe, reflect, improve childrens learning tool (ORICL) for early childhood services: A tool for building capacity in infant and toddler educators

Australasian Journal of Early Childhood

Williams, K.E. and Janus, M. and Harrison, L.J. and Wong, S. and Elwick, S. and McFarland, L.

DOI: 10.1177/18369391231194374

Risk factors for developmental vulnerability: Insight from population-level surveillance using the Early Development Instrument

Digital Health

Talarico, F. and Liu, Y.S. and Metes, D. and Wang, M. and Wearmouth, D. and Kiyang, L. and Wei, Y. and Gaskin, A. and Greenshaw, A. and Janus, M. and Cao, B.

DOI: 10.1177/20552076231210705

Does the early development instrument predict academic achievement in Ontario French schools?

Canadian Journal of Behavioural Science / Revue canadienne des sciences du comportement

Scott Davies and Magdalena Janus and Caroline Reid-Westoby and Eric Duku and Perry Schlanger

DOI: 10.1037/cbs0000285

10 / 2022

Social context factors and refugee childrens emotional health

Social Psychiatry and Psychiatric Epidemiology

Emerson, S.D. and Gagn{\'e} Petteni, M. and Guhn, M. and Oberle, E. and Georgiades, K. and Milbrath, C. and Janus, M. and Schonert-Reichl, K.A. and Gadermann, A.M.

DOI: 10.1007/s00127-021-02173-y

Psychometric properties and factor structure of the early development instrument in a sample of Jordanian children

BMC Psychology

Ababneh, E.G. and Duku, E.K. and Reid-Westoby, C. and Gaskin, A. and Janus, M.

DOI: 10.1186/s40359-022-01014-0

Primary Care Provider and Child Characteristics Associated with Age of Diagnosis of Autism Spectrum Disorder: A Population-Based Cohort Study

Journal of Autism and Developmental Disorders

Siddiqua, A. and Janus, M. and Mesterman, R. and Duku, E. and Georgiades, K. and Saxena, F. and Zhao, H. and Saunders, N.

DOI: 10.1007/s10803-021-05165-8

Childrens screen use and school readiness at 4-6 years: prospective cohort study

BMC Public Health

Vanderloo, L.M. and Janus, M. and Omand, J.A. and Keown-Stoneman, C.D.G. and Borkhoff, C.M. and Duku, E. and Mamdani, M. and Lebovic, G. and Parkin, P.C. and Simpson, J.R. and Tremblay, M.S. and Maguire, J.L. and Birken, C.S.

DOI: 10.1186/s12889-022-12629-8

Association between neighbourhood composition, kindergarten educator-reported distance learning barriers, and return to school concerns during the first wave of the COVID-19 pandemic in Ontario, Canada

International Journal of Population Data Science

Spadafora, N. and Wang, J. and Reid-Westoby, C. and Janus, M.

DOI: 10.23889/ijpds.v7i4.1761

Does social capital flatten the social gradient in early childhood development? An ecological study of two provinces in Canada

Social Indicators Research

Minh, A. and Ritland, L. and Webb, S. and Forer, B. and Brownell, M. and Duku, E. and Gagn{\'e}, M. and Janus, M. and Muhajarine, N. and Guhn, M.

DOI: 10.1007/s11205-021-02753-0

Association between Physical Activity, Screen Time and Sleep, and School Readiness in Canadian Children Aged 4 to 6 Years

Journal of Developmental and Behavioral Pediatrics

Vanderloo, L.M. and Omand, J. and Keown-Stoneman, C.D.G. and Janus, M. and Tremblay, M.S. and Maguire, J.L. and Borkhoff, C.M. and Lebovic, G. and Parkin, P. and Mamdani, M. and Simpson, J.R. and Duku, E. and Birken, C.S.

DOI: 10.1097/DBP.0000000000000986

Early pandemic impacts on family environments that shape childhood development and health: A Canadian study

Child: Care, Health and Development

McIsaac, J.-L.D. and Lamptey, D.-L. and Harley, J. and MacQuarrie, M. and Cummings, R. and Rossiter, M.D. and Janus, M. and Turner, J.

DOI: 10.1111/cch.13046

Thriving, catching up, falling behind: Immigrant and refugee childrens kindergarten competencies and later academic achievement.

Journal of Educational Psychology

Monique Gagn and Martin Guhn and Magdalena Janus and Katholiki Georgiades and Scott D. Emerson and Constance Milbrath and Eric Duku and Carly Magee and Kimberly A. Schonert-Reichl and Anne M. Gadermann

DOI: 10.1037/edu0000634

10 / 2021

Validation of the Infant and Young Child Development (IYCD) Indicators in Three Countries: Brazil, Malawi and Pakistan

International Journal of Environmental Research and Public Health

Melissa Gladstone and Gillian Lancaster and Gareth McCray and Vanessa Cavallera and Claudia R. L. Alves and Limbika Maliwichi and Muneera A. Rasheed and Tarun Dua and Magdalena Janus and Patricia Kariger

DOI: 10.3390/ijerph18116117

06 / 2021

Family responsibilities and mental health of kindergarten educators during the first COVID-19 pandemic lockdown in Ontario, Canada

Natalie Spadafora and Caroline Reid-Westoby and Molly Pottruff and Magdalena Janus

DOI: 10.1101/2021.05.11.21257057

05 / 2021

Population-Level Data on Child Development at School Entry Reflecting Social Determinants of Health: A Narrative Review of Studies Using the Early Development Instrument

International Journal of Environmental Research and Public Health

Magdalena Janus and Caroline Reid-Westoby and Noam Raiter and Barry Forer and Martin Guhn

DOI: 10.3390/ijerph18073397

03 / 2021

The application of positive parenting interventions to academic school readiness: A scoping review

Child: Care, Health and Development

Heather Prime and Krysta Andrews and Jill McTavish and Madeleine Harris and Magdalena Janus and Teresa Bennett and Andrea Gonzalez

DOI: 10.1111/cch.12810

01 / 2021

The causal influence of responsive parenting behaviour on academic readiness: a protocol for a systematic review and meta-analysis of randomized controlled trials

Systematic Reviews

Prime, H. and Andrews, K. and Gonzalez, A. and Janus, M. and Tricco, A.C. and Bennett, T. and Atkinson, L.

DOI: 10.1186/s13643-021-01757-8

Protocol for a randomised trial evaluating a preconception-early childhood telephone-based intervention with tailored e-health resources for women and their partners to optimise growth and development among children in Canada: a Healthy Life Trajectory Initiative (HeLTI Canada)

BMJ Open

Dennis, C.-L. and Marini, F. and Dick, J.A. and Atkinson, S. and Barrett, J. and Bell, R. and Berard, A. and Berger, H. and Brown, H.K. and Constantin, E. and Da Costa, D. and Feller, A. and Guttmann, A. and Janus, M. and Joseph, K.S. and J{\"u}ni, P. and Kimmins, S. and Letourneau, N. and Li, P. and Lye, S. and Maguire, J.L. and Matthews, S.G. and Millar, D. and Misita, D. and Murphy, K. and Nuyt, A.M. and O{'}Connor, D.L. and Parekh, R.S. and Paterson, A. and Puts, M. and Ray, J. and Roumeliotis, P. and Scherer, S. and Sellen, D. and Semenic, S. and Shah, P.S. and Smith, G.N. and Stremler, R. and Szatmari, P. and Telnner, D. and Thorpe, K. and Tremblay, M.S. and Vigod, S. and Walker, M. and Birken, C.

DOI: 10.1136/bmjopen-2020-046311

Nutritional risk in early childhood and parent-reported school concerns

Public Health Nutrition

Omand, J.A. and Janus, M. and Maguire, J.L. and Parkin, P.C. and Randall Simpson, J. and Keown-Stoneman, C.D.G. and Aglipay, M. and Birken, C.S.

DOI: 10.1017/S1368980021001725

Teacher-Reported Prevalence of FASD in Kindergarten in Canada: Association with Child Development and Problems at Home

Journal of Autism and Developmental Disorders

Pei, J. and Reid-Westoby, C. and Siddiqua, A. and Elshamy, Y. and Rorem, D. and Bennett, T. and Birken, C. and Coplan, R. and Duku, E. and Ferro, M.A. and Forer, B. and Georgiades, S. and Gorter, J.W. and Guhn, M. and Maguire, J. and Manson, H. and Santos, R. and Brownell, M. and Janus, M.

DOI: 10.1007/s10803-020-04545-w

Role of Child Care in Creating Inclusive Communities and Access for All

Canadian Public Policy

Rhijn, T.V. and Underwood, K. and Frankel, E. and Lero, D.S. and Spalding, K. and Janus, M. and Friendly, M. and Hach, A.

DOI: 10.3138/cpp.2021-010

Prevalence of Mental Health Disorders among Immigrant, Refugee, and Nonimmigrant Children and Youth in British Columbia, Canada

JAMA Network Open

Gadermann, A.M. and Gagn{\'e} Petteni, M. and Janus, M. and Puyat, J.H. and Guhn, M. and Georgiades, K.

DOI: 10.1001/jamanetworkopen.2021.44934

Nutritional Risk in Early Childhood and School Readiness

Journal of Nutrition

Omand, J.A. and Janus, M. and Maguire, J.L. and Parkin, P.C. and Aglipay, M. and Randall Simpson, J. and Keown-Stoneman, C.D.G. and Duku, E. and Reid-Westoby, C. and Birken, C.S.

DOI: 10.1093/jn/nxab307

Use of administrative record linkage to measure medical and social risk factors for early developmental vulnerability in Ontario, Canada

International Journal of Population Data Science

Saunders, N.R. and Janus, M. and Porter, J. and Lu, H. and Gaskin, A. and Kalappa, G. and Guttmann, A.

DOI: 10.23889/ijpds.v6i1.1407

Epidemiological study of a developmentally and culturally sensitive preschool intervention to improve school readiness of children in Addis Ababa, Ethiopia

Journal of Epidemiology and Community Health

Negussie Deyessa and Simon Webb and Eric Duku and Ann Garland and Irving Fish and Magdalena Janus and Menelik Desta

DOI: 10.1136/jech-2019-213019

06 / 2020

Socioeconomic gradient in the developmental health of Canadian children with disabilities at school entry: a cross-sectional study

BMJ Open

Dena Zeraatkar and Eric Duku and Teresa Bennett and Martin Guhn and Barry Forer and Marni Brownell and Magdalena Janus

DOI: 10.1136/bmjopen-2019-032396

04 / 2020

Sex differences in the socioeconomic gradient of children's early development

SSM - Population Health

Webb, S. and Duku, E. and Brownell, M. and Enns, J. and Forer, B. and Guhn, M. and Minh, A. and Muhajarine, N. and Janus, M.

DOI: 10.1016/j.ssmph.2019.100512

Immigrant and ethnic neighbourhood concentration and reduced child developmental vulnerability: A Canadian cohort study

International Journal of Population Data Science

McRae, D.N. and Muhajarine, N. and Janus, M. and Duku, E. and Brownell, M. and Forer, B. and Guhn, M.

DOI: 10.23889/ijpds.v5i1.1147

Association between neighbourhood socioeconomic status and developmental vulnerability of kindergarten children with Autism Spectrum Disorder: A population level study: Neighbourhood socioeconomic status and children with ASD

SSM - Population Health

Siddiqua, A. and Duku, E. and Georgiades, K. and Mesterman, R. and Janus, M.

DOI: 10.1016/j.ssmph.2020.100662

Medical sciences influences on early childhood education

Scientific Influences on Early Childhood Education: From Diverse Perspectives to Common Practices

Janus, M. and Siddiqua, A. and Noor, S.

Measuring equity from the start: Disparities in the health development of US kindergartners

Health Affairs

Halfon, N. and Aguilar, E. and Stanley, L. and Hotez, E. and Block, E. and Janus, M.

DOI: 10.1377/hlthaff.2020.00920

Cow's Milk Fat Obesity pRevention Trial (CoMFORT): a primary care embedded randomised controlled trial protocol to determine the effect of cow's milk fat on child adiposity

BMJ open

Vanderhout, S.M. and Aglipay, M. and Birken, C. and Li, P. and O{'}Connor, D.L. and Thorpe, K. and Constantin, E. and Davis, M.-A. and Feldman, M. and Ball, G.D.C. and Janus, M. and J{\"u}ni, P. and Junker, A. and Laupacis, A. and L{'}Abb{\'e}, M. and Manson, H. and Moretti, M.E. and Persaud, N. and Omand, J.A. and Relton, C. and Wong, P. and Yamashiro, H. and Tavares, E. and Weir, S. and Maguire, J.L.

DOI: 10.1136/bmjopen-2019-035241

Disentangling the role of income in the academic achievement of migrant children

Social Science Research

Gagn{\'e}, M. and Janus, M. and Muhajarine, N. and Gadermann, A. and Duku, E. and Milbrath, C. and Minh, A. and Forer, B. and Magee, C. and Guhn, M.

DOI: 10.1016/j.ssresearch.2019.102344

Transitioning Work of Families: Understanding Transinstitutional Power in Early Childhood Programs and Services

Exceptionality Education International

Underwood, K. and Frankel, E. and Parekh, G. and Janus, M.

DOI: 10.5206/eei.v29i3.9391

A Canadian Neighbourhood Index for Socioeconomic Status Associated with Early Child Development

Child Indicators Research

Forer, B. and Minh, A. and Enns, J. and Webb, S. and Duku, E. and Brownell, M. and Muhajarine, N. and Janus, M. and Guhn, M.

DOI: 10.1007/s12187-019-09666-y

Neighbourhood-level prevalence of teacher-reported Autism Spectrum Disorder among kindergarten children in Canada: A population level study

SSM - Population Health

Siddiqua, A. and Duku, E. and Georgiades, K. and Mesterman, R. and Janus, M.

DOI: 10.1016/j.ssmph.2019.100520

Association between Severe Unaddressed Dental Needs and Developmental Health at School Entry in Canada: A Cross-Sectional Study

Magdalena Janus and Caroline Reid-Westoby and Catherine Lee and Marni Brownell and Jonathon L. Maguire

DOI: 10.21203/rs.2.13806/v4

12 / 2019

Prevalence and Correlates of Youth Suicidal Ideation and Attempts: Evidence from the 2014 Ontario Child Health Study,Prvalence et corrlats de lidation et des tentatives de suicide chez les adolescents : donnes probantes de ltude sur la sant des jeunes Ontariens 2014

Canadian Journal of Psychiatry

Georgiades, K. and Boylan, K. and Duncan, L. and Wang, L. and Colman, I. and Rhodes, A.E. and Bennett, K. and Comeau, J. and Manion, I. and Boyle, M.H. and Boylan, K. and Boyle, M.H. and Butt, M. and Cunningham, C. and Duku, E. and Duncan, L. and Dunn, J. and Georgiades, S. and Gonzalez, A. and Hall, G. and Janus, M. and Kimber, M. and Lipman, E. and MacMillan, H. and Rosenbaum, P. and Sassi, R. and Schmidt, L. and Soreni, N. and Timmons, B. and Tobon, J. and Lieshout, R.V. and Wang, L. and Wekerle, C. and Cairney, J. and Carlisle, C. and Davies, S. and Jenkins, J. and Rhodes, A. and Cleverley, K. and de Oliveira, C. and Henderson, J. and Colman, I. and McLennan, J. and Comeau, J. and Dirks, M. and Ferro, M.A. and Manion, I. and Petitclerc, A. and Shepherd, C. and Waddell, C. and Szatmari, P.

DOI: 10.1177/0706743719830031

Validation of the Early Development Instrument for children with special health needs

Journal of Paediatrics and Child Health

Janus, M. and Zeraatkar, D. and Duku, E. and Bennett, T.

DOI: 10.1111/jpc.14264

Changes in the Prevalence of Child and Youth Mental Disorders and Perceived Need for Professional Help between 1983 and 2014: Evidence from the Ontario Child Health Study,Changements de la prvalence des troubles mentaux des enfants et des adolescents et du besoin peru d'aide professionnelle entre 1983 et 2014 : donnes probantes de l' tude sur la sant des jeunes Ontariens

Canadian Journal of Psychiatry

Comeau, J. and Georgiades, K. and Duncan, L. and Wang, L. and Boyle, M.H. and Afifi, T.G. and Avison, W.R. and Reid, G. and Bennett, K. and Bennett, T. and Boylan, K. and Boyle, M.H. and Butt, M. and Cunningham, C. and Duku, E. and Duncan, L. and Dunn, J. and Georgiades, K. and Georgiades, S. and Gonzalez, A. and Hall, G. and Janus, M. and Kimber, M. and Lipman, E. and MacMillan, H. and Rosenbaum, P. and Sassi, R. and Schmidt, L. and Soreni, N. and Timmons, B. and Tobon, J. and Lieshout, R.V. and Wang, L. and Wekerle, C. and Cairney, J. and Carlisle, C. and Davies, S. and Jenkins, J. and Rhodes, A. and Cleverley, K. and de Oliveira, C. and Henderson, J. and Colman, I. and McLennan, J. and Dirks, M. and Ferro, M.A. and Manion, I. and Petitclerc, A. and Shepherd, C. and Waddell, C. and Szatmari, P.

DOI: 10.1177/0706743719830035

The 2014 Ontario Child Health Study Emotional Behavioural Scales (OCHS-EBS) Part II: Psychometric Adequacy for Categorical Measurement of Selected DSM-5 Disorders,chelles motionnelles comportementales de ltude sur la sant des jeunes ontariens (EEC-ESJO) de 2014, 2^e partie : adquation psychomtrique pour la mesure catgorique de troubles choisis du DSM-5

Canadian Journal of Psychiatry

Boyle, M.H. and Duncan, L. and Georgiades, K. and Wang, L. and Comeau, J. and Ferro, M.A. and Van Lieshout, R.J. and Szatmari, P. and MacMillan, H.L. and Bennett, K. and Janus, M. and Lipman, E.L. and Kata, A.

DOI: 10.1177/0706743718808251

Influence of Surgical Procedures and General Anesthesia on Child Development before Primary School Entry among Matched Sibling Pairs

JAMA Pediatrics

O{'}Leary, J.D. and Janus, M. and Duku, E. and Wijeysundera, D.N. and To, T. and Li, P. and Maynes, J.T. and Faraoni, D. and Crawford, M.W.

DOI: 10.1001/jamapediatrics.2018.3662

Childrens Mental Health Need and Expenditures in Ontario: Findings from the 2014 Ontario Child Health Study,Besoins et dpenses de sant mentale des enfants en Ontario : rsultats de ltude sur la sant des jeunes Ontariens 2014

Canadian Journal of Psychiatry

Duncan, L. and Georgiades, K. and Birch, S. and Comeau, J. and Wang, L. and Boyle, M.H. and Afifi, T.G. and Avison, W.R. and Reid, G. and Bennett, K. and Bennett, T. and Boylan, K. and Boyle, M.H. and Butt, M. and Cunningham, C. and Duku, E. and Dunn, J. and Georgiades, K. and Georgiades, S. and Gonzalez, A. and Hall, G. and Janus, M. and Kimber, M. and Lipman, E. and MacMillan, H. and Rosenbaum, P. and Sassi, R. and Schmidt, L. and Soreni, N. and Timmons, B. and Tobon, J. and Lieshout, R.V. and Wang, L. and Wekerle, C. and Cairney, J. and Carlisle, C. and Davies, S. and Jenkins, J. and Rhodes, A. and Cleverley, K. and de Oliveira, C. and Henderson, J. and Colman, I. and McLennan, J. and Comeau, J. and Dirks, M. and Ferro, M.A. and Manion, I. and Petitclerc, A. and Shepherd, C. and Waddell, C. and Szatmari, P.

DOI: 10.1177/0706743719830036

The 2014 Ontario Child Health Study"Methodology,Ltude sur la sant des jeunes Ontariens 2014 - mthodologie

Canadian Journal of Psychiatry

Boyle, M.H. and Georgiades, K. and Duncan, L. and Comeau, J. and Wang, L. and Afifi, T.G. and Avison, W.R. and Reid, G. and Bennett, K. and Bennett, T. and Boylan, K. and Butt, M. and Cunningham, C. and Duku, E. and Duncan, L. and Dunn, J. and Georgiades, K. and Georgiades, S. and Gonzalez, A. and Hall, G. and Janus, M. and Kimber, M. and Lipman, E. and MacMillan, H. and Rosenbaum, P. and Sassi, R. and Schmidt, L. and Soreni, N. and Timmons, B. and Tobon, J. and Lieshout, R.V. and Wang, L. and Wekerle, C. and Cairney, J. and Carlisle, C. and Davies, S. and Jenkins, J. and Rhodes, A. and Cleverley, K. and de Oliveira, C. and Henderson, J. and Colman, I. and McLennan, J. and Comeau, J. and Dirks, M. and Ferro, M.A. and Manion, I. and Petitclerc, A. and Shepherd, C. and Waddell, C. and Szatmari, P.

DOI: 10.1177/0706743719833675

Poverty, Neighbourhood Antisocial Behaviour, and Childrens Mental Health Problems: Findings from the 2014 Ontario Child Health Study,Pauvret, comportement antisocial du quartier et problmes de sant mentale des enfants : rsultats de l'tude sur la sant des jeunes Ontariens 2014

Canadian Journal of Psychiatry

Boyle, M.H. and Georgiades, K. and Duncan, L. and Wang, L. and Comeau, J. and Afifi, T.G. and Avison, W.R. and Reid, G. and Bennett, K. and Bennett, T. and Boylan, K. and Butt, M. and Cunningham, C. and Duku, E. and Duncan, L. and Dunn, J. and Georgiades, K. and Georgiades, S. and Gonzalez, A. and Hall, G. and Janus, M. and Kimber, M. and Lipman, E. and MacMillan, H. and Rosenbaum, P. and Sassi, R. and Schmidt, L. and Soreni, N. and Timmons, B. and Tobon, J. and Lieshout, R.V. and Wang, L. and Wekerle, C. and Cairney, J. and Carlisle, C. and Davies, S. and Jenkins, J. and Rhodes, A. and Cleverley, K. and de Oliveira, C. and Henderson, J. and Colman, I. and McLennan, J. and Comeau, J. and Dirks, M. and Ferro, M.A. and Manion, I. and Petitclerc, A. and Shepherd, C. and Waddell, C. and Szatmari, P.

DOI: 10.1177/0706743719830027

2014 Ontario Child Health Study Findings: Policy Implications for Canada

Canadian Journal of Psychiatry

Waddell, C. and Georgiades, K. and Duncan, L. and Comeau, J. and Reid, G.J. and O?Briain, W. and Lampard, R. and Boyle, M.H. and Bennett, K. and Bennett, T. and Boylan, K. and Boyle, M.H. and Butt, M. and Cunningham, C. and Duku, E. and Duncan, L. and Dunn, J. and Georgiades, K. and Georgiades, S. and Gonzalez, A. and Hall, G. and Janus, M. and Kimber, M. and Lipman, E. and MacMillan, H. and Rosenbaum, P. and Sassi, R. and Schmidt, L. and Soreni, N. and Timmons, B. and Tobon, J. and Lieshout, R.V. and Wang, L. and Wekerle, C. and Cairney, J. and Carlisle, C. and Davies, S. and Jenkins, J. and Rhodes, A. and Cleverley, K. and de Oliveira, C. and Henderson, J. and Colman, I. and McLennan, J. and Comeau, J. and Dirks, M. and Ferro, M.A. and Manion, I. and Petitclerc, A. and Shepherd, C. and Szatmari, P.

DOI: 10.1177/0706743719830033

Tracking Childrens Mental Health in the 21st Century: Lessons from the 2014 OCHS

Canadian Journal of Psychiatry

Boyle, M.H. and Duncan, L. and Georgiades, K. and Comeau, J. and Reid, G.J. and O?Briain, W. and Lampard, R. and Waddell, C. and Bennett, K. and Bennett, T. and Boylan, K. and Butt, M. and Cunningham, C. and Duku, E. and Duncan, L. and Dunn, J. and Georgiades, K. and Georgiades, S. and Gonzalez, A. and Hall, G. and Janus, M. and Kimber, M. and Lipman, E. and MacMillan, H. and Rosenbaum, P. and Sassi, R. and Schmidt, L. and Soreni, N. and Timmons, B. and Tobon, J. and Lieshout, R.V. and Wang, L. and Wekerle, C. and Cairney, J. and Carlisle, C. and Davies, S. and Jenkins, J. and Rhodes, A. and Cleverley, K. and de Oliveira, C. and Henderson, J. and Colman, I. and McLennan, J. and Comeau, J. and Dirks, M. and Ferro, M.A. and Manion, I. and Petitclerc, A. and Shepherd, C. and Waddell, C. and Szatmari, P.

DOI: 10.1177/0706743719830025

Examination of school readiness constructs in Tanzania: Psychometric evaluation of the MELQO scales

Journal of Applied Developmental Psychology

Raikes, A. and Koziol, N. and Janus, M. and Platas, L. and Weatherholt, T. and Smeby, A. and Sayre, R.

DOI: 10.1016/j.appdev.2019.02.003

The 2014 Ontario Child Health Study Emotional Behavioural Scales (OCHS-EBS) Part I: A Checklist for Dimensional Measurement of Selected DSM-5 Disorders,chelles motionnelles comportementales de ltude sur la sant des jeunes ontariens (EEC-ESJO) de 2014, premire partie : une liste de vrification pour la mesure dimensionnelle de troubles choisis du DSM-5

Canadian Journal of Psychiatry

Duncan, L. and Georgiades, K. and Wang, L. and Comeau, J. and Ferro, M.A. and Van Lieshout, R.J. and Szatmari, P. and Bennett, K. and MacMillan, H.L. and Lipman, E.L. and Janus, M. and Kata, A. and Boyle, M.H.

DOI: 10.1177/0706743718808250

Six-Month Prevalence of Mental Disorders and Service Contacts among Children and Youth in Ontario: Evidence from the 2014 Ontario Child Health Study,Prvalence de six mois des troubles mentaux et des contacts avec les services chez les enfants et les adolescents de lOntario : donnes probantes de ltude sur la sant des jeunes Ontariens 2014

Canadian Journal of Psychiatry

Georgiades, K. and Duncan, L. and Wang, L. and Comeau, J. and Boyle, M.H. and Afifi, T.G. and Avison, W.R. and Reid, G. and Bennett, K. and Bennett, T. and Boylan, K. and Boyle, M.H. and Butt, M. and Cunningham, C. and Duku, E. and Duncan, L. and Dunn, J. and Georgiades, S. and Gonzalez, A. and Hall, G. and Janus, M. and Kimber, M. and Lipman, E. and MacMillan, H. and Rosenbaum, P. and Sassi, R. and Schmidt, L. and Soreni, N. and Timmons, B. and Tobon, J. and Lieshout, R.V. and Wang, L. and Wekerle, C. and Cairney, J. and Carlisle, C. and Davies, S. and Jenkins, J. and Rhodes, A. and Cleverley, K. and de Oliveira, C. and Henderson, J. and Colman, I. and McLennan, J. and Comeau, J. and Dirks, M. and Ferro, M.A. and Manion, I. and Petitclerc, A. and Shepherd, C. and Waddell, C. and Szatmari, P.

DOI: 10.1177/0706743719830024

Fit for School Study protocol: Early child growth, health behaviours, nutrition, cardiometabolic risk and developmental determinants of a child's school readiness, a prospective cohort

BMJ Open

Birken, C.S. and Omand, J.A. and Nurse, K.M. and Borkhoff, C.M. and Koroshegyi, C. and Lebovic, G. and Maguire, J.L. and Mamdani, M. and Parkin, P.C. and Randall Simpson, J. and Tremblay, M.S. and Duku, E. and Reid-Westoby, C. and Janus, M.

DOI: 10.1136/bmjopen-2019-030709

The impact of speech and language problems in kindergarten on academic learning and special education status in grade three

International Journal of Speech-Language Pathology

Janus, M. and Labont{\'e}, C. and Kirkpatrick, R. and Davies, S. and Duku, E.

DOI: 10.1080/17549507.2017.1381164

Behavior profiles of children with autism spectrum disorder in kindergarten: Comparison with other developmental disabilities and typically developing children

Autism Research

Janus, M. and Mauti, E. and Horner, M. and Duku, E. and Siddiqua, A. and Davies, S.

DOI: 10.1002/aur.1904

Early emotional and communication functioning predicting the academic trajectories of refugee children in Canada

Educational Psychology

Gagn{\'e}, M. and Janus, M. and Milbrath, C. and Gadermann, A. and Guhn, M.

DOI: 10.1080/01443410.2018.1475627

Establishing a protocol for building a pan-Canadian population-based monitoring system for early childhood development for children with health disorders: Canadian Children's Health in Context Study (CCHICS)

BMJ Open

Janus, M. and Brownell, M. and Reid-Westoby, C. and Bennett, T. and Birken, C. and Coplan, R. and Duku, E. and Ferro, M.A. and Forer, B. and Georgiades, S. and Gorter, J.W. and Guhn, M. and Maguire, J.L. and Manson, H. and Pei, J. and Santos, R.

DOI: 10.1136/bmjopen-2018-023688

Creation of the WHO Indicators of Infant and Young Child Development (IYCD): Metadata synthesis across 10 countries

BMJ Global Health

Lancaster, G.A. and McCray, G. and Kariger, P. and Dua, T. and Titman, A. and Chandna, J. and McCoy, D. and Abubakar, A. and Hamadani, J.D. and Fink, G. and Tofail, F. and Gladstone, M. and Janus, M.

DOI: 10.1136/bmjgh-2018-000747

A Pan-Canadian Data Resource for Monitoring Child Developmental Health: The Canadian Neighbourhoods and Early Child Development (CanNECD) Database

International Journal of Population Data Science

Janus, M. and Enns, J. and Forer, B. and Raos, R. and Gaskin, A. and Webb, S. and Duku, E. and Brownell, M. and Muhajarine, N. and Guhn, M.

DOI: 10.23889/ijpds.v3i3.431

Psychometric evaluation of the Mini International Neuropsychiatric Interview for Children and Adolescents (MINI-KID)

Psychological Assessment

Duncan, L. and Georgiades, K. and Wang, L. and Van Lieshout, R.J. and MacMillan, H.L. and Ferro, M.A. and Lipman, E.L. and Szatmari, P. and Bennett, K. and Kata, A. and Janus, M. and Boyle, M.H.

DOI: 10.1037/pas0000541

A review of neighborhood effects and early child development: How, where, and for whom, do neighborhoods matter?

Health and Place

Minh, A. and Muhajarine, N. and Janus, M. and Brownell, M. and Guhn, M.

DOI: 10.1016/j.healthplace.2017.04.012

Experiences of parents of children with special needs at school entry: a mixed method approach

Child: Care, Health and Development

Siddiqua, A. and Janus, M.

DOI: 10.1111/cch.12443

Neighbourhood socioeconomic status indices and early childhood development

SSM - Population Health

Webb, S. and Janus, M. and Duku, E. and Raos, R. and Brownell, M. and Forer, B. and Guhn, M. and Muhajarine, N.

DOI: 10.1016/j.ssmph.2016.11.006

Classifying child and adolescent psychiatric disorder by problem checklists and standardized interviews

International Journal of Methods in Psychiatric Research

Boyle, M.H. and Duncan, L. and Georgiades, K. and Bennett, K. and Gonzalez, A. and Van Lieshout, R.J. and Szatmari, P. and MacMillan, H.L. and Kata, A. and Ferro, M.A. and Lipman, E.L. and Janus, M.

DOI: 10.1002/mpr.1544

A population-based study evaluating the association between surgery in early life and child development at primary school entry

Anesthesiology

O{'}Leary, J.D. and Janus, M. and Duku, E. and Wijeysundera, D.N. and To, T. and Li, P. and Maynes, J.T. and Crawford, M.W.

DOI: 10.1097/ALN.0000000000001200

International research utilizing the Early Development Instrument (EDI) as a measure of early child development: Introduction to the Special Issue

Early Childhood Research Quarterly

Janus, M. and Harrison, L.J. and Goldfeld, S. and Guhn, M. and Brinkman, S.

DOI: 10.1016/j.ecresq.2015.12.007

Using the Early Development Instrument to examine cognitive and non-cognitive school readiness and elementary student achievement

Early Childhood Research Quarterly

Davies, S. and Janus, M. and Duku, E. and Gaskin, A.

DOI: 10.1016/j.ecresq.2015.10.002

Examining the social determinants of children's developmental health: Protocol for building a pan-Canadian population-based monitoring system for early childhood development

BMJ Open

Guhn, M. and Janus, M. and Enns, J. and Brownell, M. and Forer, B. and Duku, E. and Muhajarine, N. and Raos, R.

DOI: 10.1136/bmjopen-2016-012020

Do reciprocal associations exist between social and language pathways in preschoolers with autism spectrum disorders?

Journal of Child Psychology and Psychiatry and Allied Disciplines

Bennett, T.A. and Szatmari, P. and Georgiades, K. and Hanna, S. and Janus, M. and Georgiades, S. and Duku, E. and Bryson, S. and Fombonne, E. and Smith, I.M. and Mirenda, P. and Volden, J. and Waddell, C. and Roberts, W. and Vaillancourt, T. and Zwaigenbaum, L. and Elsabbagh, M. and Thompson, A.

DOI: 10.1111/jcpp.12356

Investigation of the Cross-National Equivalence of a Measurement of Early Child Development

Child Indicators Research

Duku, E. and Janus, M. and Brinkman, S.

DOI: 10.1007/s12187-014-9249-3

Language impairment and early social competence in preschoolers with autism spectrum disorders: A comparison of DSM-5 profiles

Journal of Autism and Developmental Disorders

DOI: 10.1007/s10803-014-2138-2

Associations between the early development instrument at age 5, and reading and numeracy skills at ages 8, 10 and 12: A prospective linked data study

Child Indicators Research

Brinkman, S. and Gregory, T. and Harris, J. and Hart, B. and Blackmore, S. and Janus, M.

DOI: 10.1007/s12187-013-9189-3

Jurisdictional, socioeconomic and gender inequalities in child health and development: Analysis of a national census of 5-year-olds in Australia

BMJ Open

Brinkman, S.A. and Gialamas, A. and Rahman, A. and Mittinty, M.N. and Gregory, T.A. and Silburn, S. and Goldfeld, S. and Zubrick, S.R. and Carr, V. and Janus, M. and Hertzman, C. and Lynch, J.W.

DOI: 10.1136/bmjopen-2012-001075

Opening Remarks to the Special Issue on Validation Theory and Research for a Population-Level Measure of Children's Development, Wellbeing, and School Readiness

Social Indicators Research

Guhn, M. and Zumbo, B.D. and Janus, M. and Hertzman, C.

DOI: 10.1007/s11205-011-9840-7

Validity and Psychometric Properties of the Early Development Instrument in Canada, Australia, United States, and Jamaica

Social Indicators Research

Janus, M. and Brinkman, S.A. and Duku, E.K.

DOI: 10.1007/s11205-011-9846-1

Validation Theory and Research for a Population-Level Measure of Children's Development, Wellbeing, and School Readiness

Social Indicators Research

Guhn, M. and Zumbo, B.D. and Janus, M. and Hertzman, C.

DOI: 10.1007/s11205-011-9841-6

Examining spatial variations in the prevalence of mental health problems among 5-year-old children in Canada

Social Science and Medicine

Raos, R. and Janus, M.

DOI: 10.1016/j.socscimed.2010.09.025

Does the EDI Equivalently Measure Facets of School Readiness for Aboriginal and Non-Aboriginal children?

Social Indicators Research

Muhajarine, N. and Puchala, C. and Janus, M.

DOI: 10.1007/s11205-011-9847-0

Evaluating early childhood education and care programs

International Encyclopedia of Education

Janus, M. and Brinkman, S.

DOI: 10.1016/B978-0-08-044894-7.01197-0

Reply to Li, D'Angiulli and Kendall: The early development index and children from culturally and linguistically diverse backgrounds

Early Years

Janus, M. and Hertzman, C. and Guhn, M. and Brinkman, S. and Goldfeld, S.

DOI: 10.1080/09575140802689125

The early years: Child development in undergraduate medical school training

Canadian Family Physician

Comley, L. and Janus, M. and Marshall, D. and Niccols, A.

In transition: Experiences of parents of children with special needs at school entry

Early Childhood Education Journal

Janus, M. and Kopechanski, L. and Cameron, R. and Hughes, D.

DOI: 10.1007/s10643-007-0217-0

Development and psychometric properties of the Early Development Instrument (EDI): A measure of children's school readiness

Canadian Journal of Behavioural Science

Janus, M. and Offord, D.R.

DOI: 10.1037/cjbs2007001

The school entry gap: Socioeconomic, family, and health factors associated with children's school readiness to learn

Early Education and Development

Janus, M. and Duku, E.

DOI: 10.1080/10409280701610796a

Starting kindergarten: Transition issues for children with special needs

Canadian Journal of Education

Janus, M. and Lefort, J. and Cameron, R. and Kopechanski, L.

DOI: 10.2307/20466656

Prediction of Preschool Behavioral Problems in Healthy and Pediatric Samples

Journal of Developmental and Behavioral Pediatrics

Goldberg, S. and Janus, M. and Washington, J. and Simmons, R.J. and Maclusky, I. and Fowler, R.S.

DOI: 10.1097/00004703-199710000-00004

Treatment characteristics of congenital heart disease and behaviour problems of patients and healthy siblings

Journal of Paediatrics and Child Health

Janus, M. and Goldberg, S.

DOI: 10.1111/j.1440-1754.1997.tb01583.x

Factors influencing family participation in a longitudinal study: Comparison of pediatric and healthy samples

Journal of Pediatric Psychology

Janus, M. and Goldberg, S.

DOI: 10.1093/jpepsy/22.2.245

Rearing environment and radial maze exploration in mice

Behavioural Processes

Janus, C. and Koperwas, J.S. and Janus, M. and Roder, J.

DOI: 10.1016/0376-6357(94)00060-T

Spatial Exploration in Transgenic Mice Expressing Human -S100

Neurobiology of Learning and Memory

Janus, C. and Janus, M. and Roder, J.

DOI: 10.1006/nlme.1995.1044

Sibling empathy and behavioural adjustment of children with chronic illness

Child: Care, Health and Development

Janus, M. and Goldberg, S.

DOI: 10.1111/j.1365-2214.1995.tb00761.x

Interplay between various aspects in social relationships of young rhesus monkeys: Dominance, agonistic help, and affiliation

American Journal of Primatology

Janus, M.

DOI: 10.1002/ajp.1350260406

Aggression in interactions of immature rhesus monkeys: components, context and relation to affiliation levels

Animal Behaviour

Janus, M.

DOI: 10.1016/S0003-3472(05)80508-1

Reciprocity in play, grooming, and proximity in sibling and nonsibling young rhesus monkeys

International Journal of Primatology

Janus, M.

DOI: 10.1007/BF02735203

Prior experience of risk and individual differences in enterprise shown by rhesus monkey infants in the second half of their first year

Primates

Simpson, M.J.A. and Gore, M.A. and Janus, M. and Rayment, F.D.G.

DOI: 10.1007/BF02380876

Are early learning and poverty-reduction policy investments associated with improved early childhood outcomes in Canada?

Funded by a SSHRC Insight Grant this project investigates whether poverty-reduction and early learning policy investments are associated with improved early childhood outcomes in Canada. The overarching objective of this research is to fill a gap in our understanding of how federal and provincial policies impact early child development and learning outcomes The pan-Canadian perspective is enhanced by the fact that the study’s co-investigators and collaborators come from BC, Manitoba, Saskatchewan, and Nova Scotia. We are using timing of the implementation of the enhanced Canada Child Benefit as a marker for comparisons of children’s outcomes on the EDI, also considering provincial changes in kindergarten policy such as introduction of the full-time learning.

Social determinants of health’s unique role in the well-being of children with special health needs

This theme combines several past, ongoing, and potentially future research projects. We have established that children with special health needs are more likely to live in socioeconomically poorer neighbourhoods and that there are similar social gradients in their developmental outcomes as those that exist among children without special health needs. Among several conditions, we have explored the role of social determinants of health at the population level in the school-entry development of children with Autism Spectrum Disorder, those with asthma, with Fetal Alcohol Syndrome Disorder. In a current project, we are addressing the impact of the special education designation on academic trajectory from kindergarten to high school in Ontario.

Understanding the worlds of children under 3 years of age: Global Scales of Early Development (GSED), Observe, Reflect, Improve Children’s Learning (ORIC) and Toddler Development Instrument (TDI)

The expansion of global application and accountability in the transition to Sustainable Development Goals spurred the networks of researchers, practitioners, and agencies to ensure child well-being, development and education were included in relevant new goals’ targets and indicators. Several new ways have been developed to explore the worlds of young children - – locally, globally; to assess development and early childhood experiences; relying on input from parents and educators. They are guided by the holistic nature of concepts of health, development and well-being in early childhood and its implications for creation of informative yet comprehensive evidence to inform policy and practice across settings, cultures, and geographies. The ongoing work on projects includes concurrent and predictive validity (GSED), influencing practice (ORICL), and reflecting community engagement (TDI).

Grants

Primary Investigator. Are poverty-reduction and early learning policy investments associated with improved early childhood outcomes in Canada? Funding Source: SSHRC Insight Grant

Co-Primary Investigator. Student Achievement Trajectories in Ontario: Capacities, Contexts, and Causes. Funding Source: SSHRC Insight Grant

Co-Investigator. Advancing Educational Equity in Alberta Classrooms, Schools, and Structures. Funding Source: SSHRC Partnership Grant

Co-Investigator. Advancing community partnerships to integrate monitoring system data and support decision making for the well-being of children, youth, and families. Funding Source: SSHRC PDG

Co-Investigator. Equity and the concept of school readiness: A Nova Scotia study. Funding Source: MITACS Accelerate Award

Co-Investigator. Understanding the Expression of Classroom Incivility Across Middle Childhood. Funding Source: SSHRC Insight Development Grant

Co-Investigator. ENRICHED: Evaluating CaNada's early leaRnIng and Childcare policy (CWELCC) on children's HEalth and Development. Funding Source: CIHR Operating Grant

Co-Investigator. SUCCESS: Screen Use in Children and School Success. Funding Source: CIHR Operating Grant

Co-Investigator. Attracting, preparing, and sustaining quality teachers in early education. Funding Source: Australian Research Council Discovery Project

Co-Investigator. A longitudinal examination of health behaviours, family context, and disruptive behaviour from preschool to primary school. Funding Source: CIHR Operating Grant

Co-Investigator. Healthcare Utilization and Developmental Outcomes Among Siblings of Children Born Preterm: A Multi-Provincial Population-based Study. Funding Source: CIHR Operating Grant

Co-Investigator. Pathways from early childhood to young adulthood: Early indicators of secondary and post-secondary graduation outcomes for children and youth in BC. Funding Source: SSHRC Insight Grant

Co-Investigator. Life Course Trajectories of Mental Health from the Early Years to Young Adulthood: An Ecological Systems and Intersectionality Perspective. Funding Source: CIHR Operating Grant

Primary Investigator. Longitudinal study of mental disorders in children with special health needs in Manitoba. Funding Source: CIHR Operating Grant Bridge Funding

Co-Investigator. Observe, Reflect, Improve: a tool to enrich Children’s Learning (ORICL) - Improving the quality of education and care for children during their critical first two years. Funding Source: Australian Research Council

Primary Investigator. Are poverty-reduction and early learning policy investments associated with improved early childhood outcomes in Canada? Funding Source: SSHRC Insight Grant

Primary Investigator. Understanding educator positionality in assessment of kindergarten children's development. Funding Source: SSHRC Partnership Engage Grant

Primary Investigator. Emerging COVID-19 Research Gaps & Priorities. Understanding and mitigating the impacts of the COVID-19 pandemic on children, youth and families in Canada. Socioeconomic gradients in early child development and COVID-19: A pre-post study of kindergarten children in multiple Canadian jurisdictions. Funding Source: CIHR Special Call Operating Grant

Honours & Awards

2002–2025 - Ontario Government Chair in Early Childhood Development (McMaster University)

Our Research

At BC Children’s, we are making discoveries that save lives and transform health care for children in our province and around the world. Our research portfolio includes basic, clinical, population, and public health research.

EXPLORE OUR RESEARCH

Magdalena Janus

PhD, MSc

Investigator, BC Children's Hospital Sunny Hill BC Leadership Chair in Child Development

Academic Affiliations

Contact Information

Location

Publications

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Investigating early childhood mental health with EDI and CHEQ

Population-level data for children with developmental disabilities: challenge, reality, and inspiration.

Poverty type, immigration background, and secondary school academic outcomes for children in British Columbia

Early Years Disrupted: Early Child Development Pre-Post Pandemic

Monitoring child development in kindergarten: Outcome of early experiences.

Parents Perceptions of Childrens Emotions, Parenting Experiences and Relationships Among Food Secure and Food Insecure Families in Atlantic Canada During the COVID-19 Pandemic

Disparities in Child Development by Maternal Birthplace and Child Sex among Kindergarten Children in Manitoba, Canada: A Population-Based Data Linkage Study

Changes in peer belonging, school climate, and the emotional health of immigrant, refugee, and non-immigrant early adolescents

Does receipt of social housing impact mental health? Results of a quasi-experimental study in the Greater Toronto Area

Six-year (2016"2022) longitudinal patterns of mental health service utilization rates among children developmentally vulnerable in kindergarten and the COVID-19 pandemic disruption

Relationship between Childhood Disability or Developmental Delay and COVID-19 Pandemic Impacts on Families across the Canadian Maritime Provinces

Psychometrics of psychosocial behavior items under age 6years: Evidence from Nebraska, USA

Developmental health of Canadian kindergarten children with teacher-reported asthma between 2010 and 2015: A population-level cross-sectional study

Association between pregnancy planning or intention and early child development: A systematic scoping review

A cross-sectional study of organized activity participation and emotional wellbeing among non-immigrant and immigrant-origin children in British Columbia, Canada

Predictive Validity of the Infant Toddler Checklist in Primary Care at the 18-month Visit and School Readiness at 4 to 6 Years

Neighbourhood context and diagnosed mental health conditions among immigrant and non-immigrant youth: a population-based cohort study in British Columbia, Canada

From Full Day Learning to 30 Minutes a Day: A Descriptive Study of Early Learning During the First COVID-19 Pandemic School Shutdown in Ontario

Shifting play experiences during the COVID-19 pandemic: family responses to pandemic restrictions

Relative Importance of Well-Being Determinants in Atlantic Canadian Families During the Pandemic

Examination of school readiness and factors related to developmental vulnerability in children born very low birth weight

The creation of the Global Scales for Early Development (GSED) for children aged 0-3 years: Combining subject matter expert judgements with big data

Student achievement trajectories in Ontario: Creating and validating a province-wide, multi-cohort and longitudinal database

Body Weight at Age Four Years and Readiness to Start School: A Prospective Cohort Study

Validation of a parent proxy-reported beverage screener compared to a 24-hour dietary recall for the measurement of sugar-containing beverage intake among young children

Positive Parenting and Early Childhood Cognition: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Population-Based Teacher-Rated Assessment of Anxiety Among Canadian Kindergarten Children

Feasibility and Potential Benefits of the Observe, Reflect, Improve Childrens Learning (ORICL) Tool: Perspectives of Infant"Toddler Educators

A Review on Early Intervention Systems

Protocol for validation of the Global Scales for Early Development (GSED) for children under 3 years of age in seven countries

Feasibility and initial psychometric properties of the observe, reflect, improve childrens learning tool (ORICL) for early childhood services: A tool for building capacity in infant and toddler educators

Risk factors for developmental vulnerability: Insight from population-level surveillance using the Early Development Instrument

Does the early development instrument predict academic achievement in Ontario French schools?

Social context factors and refugee childrens emotional health

Psychometric properties and factor structure of the early development instrument in a sample of Jordanian children

Primary Care Provider and Child Characteristics Associated with Age of Diagnosis of Autism Spectrum Disorder: A Population-Based Cohort Study

Childrens screen use and school readiness at 4-6 years: prospective cohort study

Association between neighbourhood composition, kindergarten educator-reported distance learning barriers, and return to school concerns during the first wave of the COVID-19 pandemic in Ontario, Canada

Does social capital flatten the social gradient in early childhood development? An ecological study of two provinces in Canada

Association between Physical Activity, Screen Time and Sleep, and School Readiness in Canadian Children Aged 4 to 6 Years

Early pandemic impacts on family environments that shape childhood development and health: A Canadian study

Thriving, catching up, falling behind: Immigrant and refugee childrens kindergarten competencies and later academic achievement.

Validation of the Infant and Young Child Development (IYCD) Indicators in Three Countries: Brazil, Malawi and Pakistan

Family responsibilities and mental health of kindergarten educators during the first COVID-19 pandemic lockdown in Ontario, Canada

Population-Level Data on Child Development at School Entry Reflecting Social Determinants of Health: A Narrative Review of Studies Using the Early Development Instrument

The application of positive parenting interventions to academic school readiness: A scoping review

The causal influence of responsive parenting behaviour on academic readiness: a protocol for a systematic review and meta-analysis of randomized controlled trials

Protocol for a randomised trial evaluating a preconception-early childhood telephone-based intervention with tailored e-health resources for women and their partners to optimise growth and development among children in Canada: a Healthy Life Trajectory Initiative (HeLTI Canada)

Nutritional risk in early childhood and parent-reported school concerns

Teacher-Reported Prevalence of FASD in Kindergarten in Canada: Association with Child Development and Problems at Home

Role of Child Care in Creating Inclusive Communities and Access for All

Prevalence of Mental Health Disorders among Immigrant, Refugee, and Nonimmigrant Children and Youth in British Columbia, Canada

Nutritional Risk in Early Childhood and School Readiness

Use of administrative record linkage to measure medical and social risk factors for early developmental vulnerability in Ontario, Canada

Epidemiological study of a developmentally and culturally sensitive preschool intervention to improve school readiness of children in Addis Ababa, Ethiopia

Socioeconomic gradient in the developmental health of Canadian children with disabilities at school entry: a cross-sectional study

Sex differences in the socioeconomic gradient of children's early development

Immigrant and ethnic neighbourhood concentration and reduced child developmental vulnerability: A Canadian cohort study

Association between neighbourhood socioeconomic status and developmental vulnerability of kindergarten children with Autism Spectrum Disorder: A population level study: Neighbourhood socioeconomic status and children with ASD

Medical sciences influences on early childhood education

Measuring equity from the start: Disparities in the health development of US kindergartners

Cow's Milk Fat Obesity pRevention Trial (CoMFORT): a primary care embedded randomised controlled trial protocol to determine the effect of cow's milk fat on child adiposity

Disentangling the role of income in the academic achievement of migrant children

Transitioning Work of Families: Understanding Transinstitutional Power in Early Childhood Programs and Services

A Canadian Neighbourhood Index for Socioeconomic Status Associated with Early Child Development

Neighbourhood-level prevalence of teacher-reported Autism Spectrum Disorder among kindergarten children in Canada: A population level study

Association between Severe Unaddressed Dental Needs and Developmental Health at School Entry in Canada: A Cross-Sectional Study

Prevalence and Correlates of Youth Suicidal Ideation and Attempts: Evidence from the 2014 Ontario Child Health Study,Prvalence et corrlats de lidation et des tentatives de suicide chez les adolescents : donnes probantes de ltude sur la sant des jeunes Ontariens 2014

Validation of the Early Development Instrument for children with special health needs

Influence of Surgical Procedures and General Anesthesia on Child Development before Primary School Entry among Matched Sibling Pairs

Childrens Mental Health Need and Expenditures in Ontario: Findings from the 2014 Ontario Child Health Study,Besoins et dpenses de sant mentale des enfants en Ontario : rsultats de ltude sur la sant des jeunes Ontariens 2014

Investigator, BC Children's Hospital
Sunny Hill BC Leadership Chair in Child Development