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School of Psychiatry
The NSW Child Development Study (NSW-CDS):
Using the 2009 Australian Early Development Census
with record linkage to identify risk and protective
factors for adolescent mental health outcomes
Vaughan Carr, Alessandra Raudino, Enwu Liu, Melissa Green,
Kristin Laurens, Sally Brinkman, Rhoshel Lenroot, Felicity
Harris, Luming Juo
A 15-20 year project to identify early
childhood vulnerability and protective
factors for several health, social and
wellbeing outcomes in adolescence and
young adulthood.
AIMS: To help inform policy changes and
early intervention & prevention programs
NSW-Child Development Study
[Record Linkage Research]
• Multi-agency (administrative databases)
• Multi-generational (child and parents)
• Longitudinal (repeated waves of record linkage)
• Phase 1: Two sequential record linkages (age 0-5; 0-
11)
• Phase 2: Record linkage for adolescent outcomes
(age: 0-16)
• Incorporating data from surveys:
• Teacher-reported (AEDC) @ age ~5yr (2009)
• Self-reported (MCS) @ age ~11yr (2015)
Datasets included in Phase 1 of the study
Datasets included in Phase 1 of the study
Record linkage 1 datasets:
Health Records Perinatal (Midwives) Data Collection
(NSW Ministry of Health)
Registry of Births, Deaths, and Marriages – Births and Deaths (Australian Bureau of Statistics)
ABS Mortality Data Collection (Australian Bureau of Statistics)
Emergency Department Data Collection (NSW Ministry of Health)
Admitted Patient Data Collection (NSW Ministry of Health)
Mental Health Ambulatory Data Collection (NSW Ministry of Health)
Education Records
– Australian Early Development Census (Commonwealth Department of Education, Employment, & Workplace Relations)
– Best Start Kindergarten Assessment (NSW Department of Education and Communities)
Community Services Records
Child Protection, Out of Home Care, and Brighter Futures Data Collections (NSW Department of Family & Community Services)
Crime Statistics
BOCSAR (Bureau of Crime Statistics and Research)
Datasets included in Phase 1 of the study
Datasets included in Phase 1 of the study
Record linkage 1 datasets:
Health Records
Perinatal (Midwives) Data Collection
Registry of Births, Deaths, and Marriages – Births and Deaths
ABS Mortality Data Collection
Emergency Department Data Collection
Admitted Patient Data Collection
Mental Health Ambulatory Data Collection
Education Records
• Best Start Kindergarten Assessment
Child Development Records
• Australian Early
Development Census
(Kindergarten)
Crime Statistics Records
BOCSAR Reoffending
Community Services Records
Case Management System Child Protection Out of Home Care Early Intervention Programs:
Brighter Futures
Record linkage 2 datasets:
Health Records
Perinatal (Midwives) Data Collection
Registry of Births, Deaths, and Marriages – Births and Deaths
ABS Mortality Data Collection
Emergency Department Data Collection
Admitted Patient Data Collection
Mental Health Ambulatory Data Collection
Mental Health Outcome and
Assessment Toolkit
Pharmaceutical Drugs of Addiction
Subsystem
Education Records • Best Start Kindergarten
Assessment
• NAPLAN (Grade 3 and 5)
• Suspensions and Expulsions
• Student Enrolment Records
• *Survey of School Promotion of Emotional and Social Health
Child Development Records
• Australian Early
Development Census
(Kindergarten)
• *NSW-CDS Middle
Childhood Survey (Grade 6)
Crime Statistics Records
BOCSAR Reoffending
Community Services Records
Case Management System Child Protection Out of Home Care Early Intervention Programs:
Brighter Futures and Strengthening Families
Putting the AEDC data to use:
The impact of childhood infection on
developmental vulnerability
Infectious Diseases and their Sequelae
• Maternal prenatal infections and adult psychosis
(esp. SZ) in offspring.
• Childhood infections and later illness & disability:
• Behavioural problems, poor cognitive functioning
• Autism, learning difficulties
• Asthma, eczema, allergies
• Adult anxiety, depression, schizophrenia, affective
psychosis
• Adult SZ: increased rates of auto-immune diseases
and inflammatory markers
• Research Question: What are the effects of
infections on psychosocial development (AEDI)?
AEDC DOMAINS Emotional maturity
-Pro-social & helping, anxious/fearful, aggressive, hyperactive and inattentive behaviours;
Social competence
-Overall social competence, approaches to learning, readiness to explore new things, responsibility and respect;
Physical health and wellbeing
-Physical readiness for school, physical independence, gross and fine motor skills;
Language and cognitive skills
-Basic and advanced literacy and numeracy, interest in literacy/numeracy, and memory;
Communication and general knowledge
-Proficiency in understanding and listening.
Selected domain descriptives from the NSW AEDC dataset (n= 87 026)
Percentiles based on National AEDC data, i.e. created on basis of all children who participated in the AEDC nationally.
Developmentally vulnerable
Developmentally at risk
On track
Domain <10th percentile (%)
10th-25th percentile (%)
25th-50th percentile (%)
>50th percentile (%)
Physical health and wellbeing 8.6 12.9 21.3 57.2
Social competence 8.8 14.0 23.0 54.2
Emotional maturity 7.4 14.3 24.7 53.6
Language and cognition 5.9 9.5 19.4 65.2
Communication skills and general knowledge
9.2 15.8 19.2 55.9
Method
• All children selected had a Perinatal record and an APDC
record up to age 4yr
• Cases = Children defined as developmentally vulnerable
(i.e., <10th percentile on a given AEDC domain) at age 5yr
• Controls = Children defined as NOT developmentally
vulnerable (i.e., >10th percentile on a given AEDC domain)
• Controls matched to cases on age, ESL and SEIFA; 3
controls for each case
• Exposure = hospital admission >24hr for infectious disease
(number of days hospitalised was recorded)
Method
• Confounds:
• Perinatal (birth weight; maternal: age, smoking during
pregnancy, gestational diabetes, diabetes mellitus, hyper-
tension, pre-eclampsia)
• FaCS record of abuse or neglect
• Sex
• Admission to hospital for non-infectious disease
• Data analysis:
• Conditional logistic regressions
Results
Admissions AEDI
Emotional Maturity
AEDI
Language & Cognition
UOR AOR P UOR AOR P
Any Infection 1.7 1.4 <.0001 1.9 1.5 <.0001
Viral 1.7 1.4 .0007 1.8 1.3 .002
Bacterial 1.5 1.3 .1205 1.8 1.5 .0129
Other 1.6 1.3 .001 1.8 1.5 <.0001
Non-CNS 1.7 1.4 <.0001 1.9 1.4 <.0001
CNS - - - - - -
Similar patterns for Social Competence, Communication & General Knowledge,
and Physical Health & Wellbeing
Conclusions
• Risk of developmental psychological vulnerability on
school entry is increased in children admitted to hospital
with infectious diseases
• There is a dose-response relationship with probability of
psychological vulnerability increasing with number of
days spent in hospital
Thank you
Dr. Stacy Tsoumakis
Dr. Maina Kariuki
A/Prof. Kimberlie Dean
Ms. Stephanie Dick
Ms Brooke McIntyre
Mr Philip Hull
and all the NSW-CDS study partners and collaborators