A paediatrician, public health physician and an internationally recognised clinical epidemiologist, Professor Williams has recently commenced an appointment as APEX Australia Chair of Developmental Medicine at the University of Melbourne and Director of the Department of Developmental Medicine at the Royal Children’s Hospital, Melbourne. Professor Williams has worked as a clinician and researcher in developmental medicine and community child health since 1996.
Professor Williams’ current research is on autism and research methodology, including recently completed or ongoing projects of (1) assessing outcome measures for children with autism, (2) a trial of oxytocin as a treatment for autism; (3) a comparison of educational approaches to improve outcomes of children with autism, (4) a trial of different early intervention approaches for autism and (5) a study of the prognosis of autism.
Professor Williams has over 50 peer reviewed publications, has edited three books about evidence based medicine and research methods, has co-authored three book chapters and presented numerous invited and peer reviewed talks. She was invited to co-deliver a plenary session at the 2007 Biennial Australian Conference on Autism Spectrum Disorders on the topic “Prevalence of Autism in Australia. Can it be established from existing data?” She has also delivered over 15 other invited presentations on the topic of autism and over 20 invited presentations about evidence-based practice and research methods. Professor Williams is an editor for the Cochrane Developmental, Psychosocial and Learning Problems Review Group; Cochrane commentaries section of the Journal of Paediatrics and Child Health; Child: Health, Care and Development; Evidence-based child health - A Cochrane review journal. She was also author and editor for the British Medical Journal publication Evidence based paediatrics and child health (2004 & 2000) and Health science research and a handbook of quantitative methods (Allen & Unwin 2001). Her track record is extensive and she is taking a senior role in the generation of future health-care related knowledge.
Professor Williams has extensive national and international research collaborations including her roles as co-convenor of the Cochrane Child Health Field (collaborating with Canada); co-convenor of the Cochrane Prognosis Methods Group (collaborating with Canada, UK, the Netherlands); group leader for the STAR initiative to improve methods for clinical trials in children (collaborating with USA, Canada, India, the Netherlands). She has also co-authored a Federal Government review about early intervention in ASD and acted as a consultant to another Federal Government review about early intervention for all developmental disabilities. Professor Williams has active roles in implementing evidence to clinical care and service delivery and therefore the reach and dissemination of her research output to the Australian community is extensive.
Professor Williams has a strong presence in relevant professional bodies. She is a current member of the Autism Victoria Accreditation Panel; the Australian Advisory Board on Autism Spectrum Disorders; and past member of the Australian Better Treatment for Children Network; the Out of Home Care research group for NSW Health; Positive Partnerships (DEEWR component, Australian Governments $190 million Helping Children with Autism Program) Content Review Team; and Research Committee for the Board of Autism Spectrum Disorders Australia (ASPECT). Professor Williams is a founding Member and executive committee member of the Australasian Society for Autism Research.
Find out more about Katrina Williams Williams' experience
Katrina Williams Williams' highlights
FEATURED Journal article
Does cannabidiol reduce severe behavioural problems in children with intellectual disability? Study protocol for a pilot single-site phase I/II randomised placebo controlled trial.Read more
Katrina Williams Williams' selected work
Autism Spectrum Disorder Prevalence in Children Aged 12-13 Years From the Longitudinal Stu..
Displaying the 15 most recent projects by Katrina Williams Williams.
Displaying the 200 most recent scholarly works by Katrina Williams Williams.
Does cannabidiol reduce severe behavioural problems in children with intellectual disability? Study protocol for a pilot single-site phase I/II randomised placebo controlled trial.
Daryl Efron, Kaitlyn Taylor, Jonathan M Payne, Jeremy L Freeman, Noel Cranswick, Melissa Mulraney, Chidambaram Prakash, Katherine J Lee, Katrina Williams
Journal article | 2020 | BMJ Open
INTRODUCTION: Severe behavioural problems (SBPs) are a common contributor to morbidity and reduced quality of life in children wit..
Autism Spectrum Disorder Prevalence in Children Aged 12-13 Years From the Longitudinal Study of Australian Children
Tamara May, Amanda Brignell, Katrina Williams
Journal article | 2020 | Autism Research
This study aimed to provide an autism spectrum disorder (ASD) prevalence update from parent and teacher report using the Longitudi..
Individualised MRI training for paediatric neuroimaging: A child-focused approach
Emmanuel Peng Kiat Pua, Sarah Barton, Katrina Williams, Jeffrey M Craig, Marc L Seal
Journal article | 2020 | Developmental Cognitive Neuroscience
Magnetic Resonance Imaging (MRI) in paediatric cohorts is often complicated by reluctance to enter the scanner and head motion-rel..
A comparison of two models of support for students with autism spectrum disorder in school and predictors of school success
Mark Carter, Jennifer Stephenson, Trevor Clark, Debra Costley, Jon Martin, Katrina Williams, Susan Bruck, Louise Davies, Leah Browne, Naomi Sweller
Journal article | 2019 | Research in Autism Spectrum Disorders
Sleeping sound with autism spectrum disorder (ASD): study protocol for an efficacy randomised controlled trial of a tailored brief behavioural sleep intervention for ASD
Nicole Papadopoulos, Emma Sciberras, Harriet Hiscock, Katrina Williams, Jane McGillivray, Cathrine Mihalopoulos, Lidia Engel, Matthew Fuller-Tyszkiewicz, Susannah T Bellows, Deborah Marks, Patricia Howlin, Nicole Rinehart
Journal article | 2019 | BMJ Open
INTRODUCTION: Sleep problems are a characteristic feature of children with autism spectrum disorder (ASD) with 40% to 80% of child..
A PILOT RANDOMIZED CONTROLLED TRIAL OF CANNABIDIOL TO REDUCE SEVERE BEHAVIORAL PROBLEMS IN CHILDREN AND ADOLESCENTS WITH INTELLECTUAL DISABILITY
Daryl Efron, Jeremy Freeman, Noel Cranswick, Jonathan Payne, Melissa Mulraney, Chidambaram Prakash, Katherine Lee, Kaitlyn Taylor, Katrina Williams
Conference Proceedings | 2019 | Journal of the American Academy of Child & Adolescent Psychiatry
Paediatric emergency department presentations due to feeding tube complications in children with cerebral palsy
Ai-Lynn Wong, Elaine Meehan, Franz E Babl, Susan M Reid, Anthony Catto-Smith, Katrina Williams, Dinah S Reddihough
Journal article | 2019 | Journal of Paediatrics and Child Health
AIM: To describe the characteristics of emergency department (ED) presentations due to complications from gastrostomy or gastrojej..
Understanding autism spectrum disorder and social functioning in children with neurofibromatosis type 1: protocol for a cross-sectional multimodal study
Kristina M Haebich, Natalie A Pride, Karin S Walsh, Anita Chisholm, Melissa Rouel, Alice Maier, Vicki Anderson, Belinda Barton, Tim Silk, Mayuresh Korgaonkar, Marc Seal, Francesca Lami, Jennifer Lorenzo, Katrina Williams, Gabriel Dabscheck, Caroline D Rae, Michael Kean, Kathryn N North, Jonathan M Payne
Journal article | 2019 | BMJ Open
INTRODUCTION: Children with the single-gene disorder neurofibromatosis type 1 (NF1) appear to be at an increased risk for autism s..
Content validation of the Quality of Life Inventory-Disability
Amy Epstein, Katrina Williams, Dinah Reddihough, Nada Murphy, Helen Leonard, Andrew Whitehouse, Peter Jacoby, Jenny Downs
Journal article | 2019 | Child: Care, Health and Development
BACKGROUND: Focus is shifting to better understand the lived experiences of children with intellectual disability in relation to t..
'Everyone gets a kick': Coach characteristics and approaches to inclusion in an Australian Rules Football program for children
Tamara May, Carmel Sivaratnam, Katrina Williams, Jane McGillivray, Andrew Whitehouse, Nicole J Rinehart
Journal article | 2019 | International Journal of Sports Science & Coaching
A Capacity Building Program to Improve the Self-Efficacy of Key Workers to Support the Well-Being of Parents of a Child With a Disability Accessing an Early Childhood Intervention Service: Protocol for a Stepped-Wedge Design Trial
Elise Davis, Dana Young, Kim-Michelle Gilson, John Reynolds, Rob Carter, Utsana Tonmukayakul, Katrina Williams, Lisa Gibbs, Rachael McDonald, Dinah Reddihough, Jane Tracy, Jennifer Morgan, Paul Ireland, Cassie Kenyon, Rod Carracher
Journal article | 2019 | JMIR Research Protocols
Reporting of data monitoring committees and adverse events in paediatric trials: A descriptive analysis
A Gates, P Caldwell, S Curtis, L Dans, RM Fernandes, L Hartling, LE Kelly, B Vandermeer, K Williams, K Woolfall, MP Dyson
Journal article | 2019 | BMJ Paediatrics Open
ObjectivesFor 300 paediatric trials, we evaluated the reporting of: a data monitoring committee (DMC); interim analyses, stopping ..
Driving Precision Policy Responses to Child Health and Developmental Inequities.
Sharon Goldfeld, Sarah Gray, Francisco Azpitarte, Dan Cloney, Fiona Mensah, Gerry Redmond, Katrina Williams, Sue Woolfenden, Meredith O'Connor
Journal article | 2019 | Health Equity
The growing evidence base on the extent of and opportunities to reduce inequities in children's health and development still lacks..
A descriptive analysis of non-Cochrane child-relevant systematic reviews published in 2014.
Michelle Gates, Sarah A Elliott, Cydney Johnson, Denise Thomson, Katrina Williams, Ricardo M Fernandes, Lisa Hartling
Journal article | 2018 | BMC Medical Research Methodology
BACKGROUND: Consumers, clinicians, policymakers and researchers require high quality evidence to guide decision-making in child he..
The impact of multidimensional disadvantage over childhood on developmental outcomes in Australia
Sharon Goldfeld, Meredith O'Connor, Shiau Chong, Sarah Gray, Elodie O'Connor, Sue Woolfenden, Gerry Redmond, Katrina Williams, Fiona Mensah, Amanda Kvalsvig, Hannah Badland
Journal article | 2018 | International Journal of Epidemiology
Supporting the mental health of mothers of children with a disability: Health professional perceptions of need, role, and challenges
Kim-Michelle Gilson, Shae Johnson, Elise Davis, Susan Brunton, Elena Swift, Dinah Reddihough, Katrina Williams
Journal article | 2018 | Child: Care, Health and Development
Twin-to-twin transfusion syndrome neurodevelopmental follow-up study (neurodevelopmental outcomes for children whose twin-to-twin transfusion syndrome was treated with placental laser photocoagulation)
Christie Bolch, Michael Fahey, Dinah Reddihough, Katrina Williams, Susan Reid, Angela Guzys, Stephen Cole, Andrew Edwards, Alison Fung, Ryan Hodges, Ricardo Palma-Dias, Mark Teoh, Susan Walker
Journal article | 2018 | BMC Pediatrics
More than a snapshot in time: pathways of disadvantage over childhood
Sharon Goldfeld, Meredith O'Connor, Elodie O'Connor, Shiau Chong, Hannah Badland, Sue Woolfenden, Gerry Redmond, Katrina Williams, Francisco Azpitarte, Dan Cloney, Fiona Mensah
Journal article | 2018 | International Journal of Epidemiology
Health professional perceptions regarding screening tools for developmental surveillance for children in a multicultural part of Sydney, Australia
Pankaj Garg, My Trinh Ha, John Eastwood, Susan Harvey, Sue Woolfenden, Elisabeth Murphy, Cheryl Dissanayake, Katrina Williams, Bin Jalaludin, Anne McKenzie, Stewart Einfeld, Natalie Silove, Kate Short, Valsamma Eapen
Journal article | 2018 | BMC Family Practice
Parents Suggest Which Indicators of Progress and Outcomes Should be Measured in Young Children with Autism Spectrum Disorder
Helen McConachie, Nuala Livingstone, Christopher Morris, Bryony Beresford, Ann Le Couteur, Paul Gringras, Deborah Garland, Glenys Jones, Geraldine Macdonald, Katrina Williams, Jeremy R Parr
Journal article | 2018 | Journal of Autism and Developmental Disorders
Understanding child disadvantage from a social determinants perspective
Sharon Goldfeld, Meredith O'Connor, Dan Cloney, Sarah Gray, Gerry Redmond, Hannah Badland, Katrina Williams, Fiona Mensah, Sue Woolfenden, Amanda Kvalsvig, Anita T Kochanoff
Journal article | 2018 | Journal of Epidemiology and Community Health
The Conduct and Reporting of Child Health Research: An Analysis of Randomized Controlled Trials Published in 2012 and Evaluation of Change over 5 Years
Allison Gates, Lisa Hartling, Ben Vandermeer, Patrina Caldwell, Despina G Contopoulos-Ioannidis, Sarah Curtis, Ricardo M Fernandes, Terry P Klassen, Katrina Williams, Michele P Dyson
Journal article | 2018 | The Journal of Pediatrics
Current status, opportunities, challenges and the paediatrician's role as the National Disability Insurance Scheme rolls out across Australia
Tamara May, Mike Forrester, Murray Webber, Jacqueline Roberts, Michelle Spreckley, Adam Scheinberg, Katrina Williams
Journal article | 2018 | Journal of Paediatrics and Child Health
Protocol for a prospective longitudinal study investigating the participation and educational trajectories of Australian students with autism
Jacqueline Margaret Anne Roberts, Dawn Adams, Helen Heussler, Deborah Keen, Jessica Paynter, David Trembath, Marleen Westerveld, Katrina Williams
Journal article | 2018 | BMJ Open
Enhancing support for the mental wellbeing of parents of children with a disability: Developing a resource based on the perspectives of parents and professionals
Kim-Michelle Gilson, Elise Davis, Lara Corr, Shawn Stevenson, Katrina Williams, Dinah Reddihough, Helen Herrman, Jane Fisher, Elizabeth Waters
Journal article | 2018 | Journal of Intellectual & Developmental Disability
Comparing emergency department presentations among children with cerebral palsy with general childhood presentations: a data linkage study
Elaine Meehan, Katrina Williams, Susan M Reid, Gary L Freed, Franz E Babl, Jillian R Sewell, Suzanna Vidmar, Susan Donath, Dinah S Reddihough
Journal article | 2017 | Developmental Medicine & Child Neurology
Maternal help-seeking for child developmental concerns: Associations with socio-demographic factors
Valsamma Eapen, Amelia Walter, Jane Guan, Joseph Descallar, Emma Axelsson, Stewart Einfeld, John Eastwood, Elisabeth Murphy, Deborah Beasley, Natalie Silove, Cheryl Dissanayake, Sue Woolfenden, Katrina Williams, Bin Jalaludin
Journal article | 2017 | Journal of Paediatrics and Child Health
Brief Report: An Exploratory Study of the Diagnostic Reliability for Autism Spectrum Disorder
Lauren J Taylor, Valsamma Eapen, Murray Maybery, Sue Midford, Jessica Paynter, Lyndsay Quarmby, Timothy Smith, Katrina Williams, Andrew JO Whitehouse
Journal article | 2017 | Journal of Autism and Developmental Disorders
Explaining culturally and linguistically diverse (CALD) parents' access of healthcare services for developmental surveillance and anticipatory guidance: qualitative findings from the 'Watch Me Grow' study
Pankaj Garg, Trinh Ha My, John Eastwood, Susan Harvey, Sue Woolfenden, Elisabeth Murphy, Cheryl Dissanayake, Bin Jalaludin, Katrina Williams, Anne McKenzie, Stewart Einfeld, Natalie Silove, Kate Short, Valsamma Eapen
Journal article | 2017 | BMC Health Services Research
Predictors of developmental surveillance completion at six months of age in south western Sydney
BJ Overs, S Woolfenden, K Williams, B Jalaludin, EL Axelsson, C Dissanayake, J Descallar, S Harvey, D Beasley, E Murphy, V Eapen
Journal article | 2017 | Child: Care, Health and Development
BACKGROUND: While developmental surveillance programs promote early identification of child developmental problems, evidence has i..
A Multidisciplinary Perspective on Motor Impairment as an Early Behavioural Marker in Children with Autism Spectrum Disorder
Tamara May, Jennifer McGinley, Anna Murphy, Trina Hinkley, Nicole Papadopoulos, Katrina J Williams, Jane McGillivray, Peter G Enticott, Richard J Leventer, Nicole J Rinehart
Journal article | 2016 | Australian Psychologist
Developing a new service model for children with a disability: What do parents want?
D Young, E Davis, K-M Gilson, L Gibbs, J Chan, D Reddihough, K Williams, J Tracy, R McDonald, R Carter, J Reynolds, U Tonmukayakul, J Morgan
Conference Proceedings | 2016 | JOURNAL OF INTELLECTUAL DISABILITY RESEARCH
Who is our cohort: recruitment, representativeness, baseline risk and retention in the "Watch Me Grow" study?
Susan Woolfenden, Valsamma Eapen, Emma Axelsson, Alexandra Hendry, Bin Jalaludin, Cheryl Dissanayake, Bronwyn Overs, Joseph Descallar, John Eastwood, Stewart Einfeld, Natalie Silove, Kate Short, Deborah Beasley, Rudi Crncec, Elisabeth Murphy, Katrina Williams
Journal article | 2016 | BMC Pediatrics
Diagnosing autism: Australian paediatric research network surveys
Melinda Randall, Natalia Albein-Urios, Amanda Brignell, Alisha Gulenc, Sabine Hennel, Cathy Coates, Christos Symeonides, Harriet Hiscock, Catherine Marraffa, Natalie Silove, Vivian Bayl, Susan Woolfenden, Katrina Williams
Journal article | 2016 | Journal of Paediatrics and Child Health
Publication of reviews synthesizing child health evidence (PORSCHE): a survey of authors to identify factors associated with publication in Cochrane and non-Cochrane sources
Lisa Hartling, Kassi Shave, Denise Thomson, Ricardo M Fernandes, Aireen Wingert, Katrina Williams
Journal article | 2016 | Systematic Reviews
Prevalence and factors associated with parental concerns about development detected by the Parents' Evaluation of Developmental Status (PEDS) at 6-month, 12-month and 18-month well-child checks in a birth cohort
Susan Woolfenden, Valsamma Eapen, Bin Jalaludin, Andrew Hayen, Lynn Kemp, Cheryl Dissanyake, Alexandra Hendry, Emma Axelsson, Bronwyn Overs, John Eastwood, Rudi Crncec, Anne McKenzie, Deborah Beasley, Elisabeth Murphy, Katrina Williams
Journal article | 2016 | BMJ Open
Systematic review of tools to measure outcomes for young children with autism spectrum disorder
Helen McConachie, Jeremy R Parr, Magdalena Glod, Jennifer Hanratty, Nuala Livingstone, Inalegwu P Oono, Shannon Robalino, Gillian Baird, Bryony Beresford, Tony Charman, Deborah Garland, Jonathan Green, Paul Gringras, Glenys Jones, James Law, Ann S Le Couteur, Geraldine Macdonald, Elaine M McColl, Christopher Morris, Jacqueline Rodgers, et al.
Journal article | 2015 | Health Technology Assessment
Chelation for autism spectrum disorder (ASD).
Stephen James, Shawn W Stevenson, Natalie Silove, Katrina Williams
Journal article | 2015 | Cochrane Database of Systematic Reviews
BACKGROUND: It has been suggested that the severity of autism spectrum disorder (ASD) symptoms is positively correlated with the l..
Use of GRADE for assessment of evidence about prognosis: rating confidence in estimates of event rates in broad categories of patients
Alfonso Iorio, Frederick A Spencer, Maicon Falavigna, Carolina Alba, Eddie Lang, Bernard Burnand, Tom McGinn, Jill Hayden, Katrina Williams, Beverly Shea, Robert Wolff, Ton Kujpers, Pablo Perel, Per Olav Vandvik, Paul Glasziou, Holger Schunemann, Gordon Guyatt
Journal article | 2015 | BMJ
A systematic review and meta-analysis of cohort studies of echocardiographic findings in OSA children after adenotonsilectomy
Silke Anna Theresa Weber, Raissa Pierri Carvalho, Greta Ridley, Katrina Williams, Regina El Dib
Journal article | 2014 | International Journal of Pediatric Otorhinolaryngology
"Are you available for the next 18 months?"-methods and aims of a longitudinal birth cohort study investigating a universal developmental surveillance program: the 'Watch Me Grow' study
Valsamma Eapen, Susan Woolfenden, Katrina Williams, Bin Jalaludin, Cheryl Dissanayake, Emma L Axelsson, Elisabeth Murphy, John Eastwood, Joseph Descallar, Deborah Beasley, Rudi Crncec, Katherine Short, Natalie Silove, Stewart Einfeld, Margot Prior
Journal article | 2014 | BMC Pediatrics
Changes in physical activity during a weight loss intervention and follow-up: a randomized controlled trial.
NR Fuller, K Williams, R Shrestha, AL Ahern, C Holzapfel, H Hauner, SA Jebb, ID Caterson
Journal article | 2014 | Clinical Obesity
Physical activity is an important component in weight loss treatment and weight maintenance. We evaluated the physical activity co..
Empirical Evaluation of Age Groups and Age-Subgroup Analyses in Pediatric Randomized Trials and Pediatric Meta-analyses
Despina G Contopoulos-Ioannidis, Iva Seto, Michele P Hamm, Denise Thomson, Lisa Hartling, John PA Ioannidis, Sarah Curtis, Evelyn Constantin, Gitanjali Batmanabane, Terry Klassen, Katrina Williams
Journal article | 2012 | Pediatrics
A randomised controlled trial of two early intervention programs for young children with autism: Centre-based with parent program and home-based
Jacqueline Roberts, Katrina Williams, Mark Carter, David Evans, Trevor Parmenter, Natalie Silove, Trevor Clark, Anthony Warren
Journal article | 2011 | Research in Autism Spectrum Disorders
Characterization of 11p14-p12 deletion in WAGR syndrome by array CGH for identifying genes contributing to mental retardation and autism.
S Xu, JC Han, A Morales, CM Menzie, K Williams, Y-S Fan
Journal article | 2008 | Cytogenetic and Genome Research
WAGR (Wilms tumor, Aniridia, Genitourinary malformations and mental Retardation) syndrome is a rare genomic disorder caused by del..
Hospitalisations from birth to 5 years in a population cohort of Western Australian children with intellectual disability.
K Williams, H Leonard, E Tursan d'Espaignet, L Colvin, L Slack-Smith, F Stanley
Journal article | 2005 | Archives of Disease in Childhood
AIMS: To describe the hospitalisation history in the first five years of life for all children born in Western Australia (WA) betw..
Children in reviews: methodological issues in child-relevant evidence syntheses.
Kristie Cramer, Natasha Wiebe, Virginia Moyer, Lisa Hartling, Katrina Williams, George Swingler, Terry P Klassen
Journal article | 2005 | BMC Pediatrics
BACKGROUND: The delivery of optimal medical care to children is dependent on the availability of child relevant research. Our obje..
Family and parenting interventions in children and adolescents with conduct disorder and delinquency aged 10-17.
SR Woolfenden, K Williams, J Peat
Journal article | 2001 | Cochrane Database of Systematic Reviews
BACKGROUND: Conduct disorder and delinquency are significant problems for children and adolescents and their families, with the po..
Role of the Australian Paediatric Surveillance Unit in monitoring communicable diseases of childhood.
K Williams, E Elliott
Journal article | 1998 | Communicable diseases intelligence
The Australian Paediatric Surveillance Unit (APSU) conducts active national surveillance of conditions affecting children, includi..
Qualitative Analysis of Parental Observations on Quality of Life in Australian Children with Down Syndrome.
Nada Murphy, Amy Epstein, Helen Leonard, Elise Davis, Dinah Reddihough, Andrew Whitehouse, Peter Jacoby, Jenny Bourke, Katrina Williams, Jenny Downs
Journal article | Journal of Developmental & Behavioral Pediatrics
OBJECTIVE: There are many challenges to health, functioning, and participation for children with Down syndrome; yet, the quality-o..
Honours, Awards and Fellowships
FAFPHM - Fellow of the Australian Faculty of Public Health Medicine
FRACP - Fellow of the Royal Australasian College of Physicians
Paediatrics Royal Children'S Hospital
Doctor of Philosophy
University of Sydney
Masters of Science in Community Child Health
University of London
Bachelor of Medicine Bachelor of Science