Publications: Cohort Descriptions

  • Green, M.J., Harris, F, Laurens, K.R., Tzoumakis, S., Dean, K., Brinkman, S., Chilvers, M., Sprague, T., Stevens, R., Carr, V.J. (2018). The New South Wales Child Development Study (NSW-CDS) – Wave 2 (Child age 13 years). International Journal of Epidemiology, 45(5), p1396-1397k, dyy115, doi: 10.1093/ije/dyy115.

This report provides a description of the NSW Child Development Study cohort, and what has been measured in the cohort, following the second record linkage (Wave 2) in 2016. The child cohort is comprised of 91,635 children, defined by inclusion in the NSW Australian Early Development Census (AEDC) of 2009 at school entry (n=87,037) and/or the investigator-led Middle Childhood Survey (MCS)conducted in 2015 (n=27,792). The MCS captured 26.6% of the original 2009 AEDC cohort, and also brought 4598 new children into the cohort; 23,194 children contributed records to both the AEDC and MCS assessments. Wave 2 brings together each child’s birth, mortality, health, academic achievement, school enrolment, school suspensions and expulsions, child protection and criminal records, linked with their mothers’ perinatal records, and with both parents’ mortality, health and criminal records, where available. This report describes the linkage rates for each of these record sets, as well detailed information about each record set, and characteristics for the child and their parents. Published findings from the study to date, its strengths and limitations and future directions, are also discussed.

  • Carr, V.J., Harris, F., Raudino, A., Luo, L., Kariuki, M., Liu, E., Tzoumakis, S., Smith, M., Holbrook, A., Bore, M., Brinkman, S.A., Lenroot, R.K., Dix, K., Dean, K., Laurens, K.R., Green, M.J. (2016). Cohort Profile: The New South Wales Child Development Study (NSW-CDS) – An Australian multi-agency, multi-generational, longitudinal record linkage study. BMJ Open, 6:e009023 doi:10.1136/bmjopen-2015-009023.

This report provides a description of the characteristics of children who make up the NSW Child Development Study cohort. This group comprises 87,000 children who commenced their formal school education in 2009, and for whom class teachers completed the Australian Early Development Census (AEDC). Rates for the successful linkage of the AEDC records with other administrative data for the children and their parents are provided within this publication, and information about the demographic characteristics (e.g., sex, geographic and socioeconomic distributions), as well as the representativeness of this group to a comparable national population. The strengths and limitations of the study are also discussed.

  • Laurens K.R., Tzoumakis S., Dean K., Brinkman S.A., Bore, M., Lenroot, R.K., Smith, M., Holbrook, A., Robinson K.M., Stevens, R., Harris, F., Carr, V.J., Green, M.J (2017). The 2015 Middle Childhood Survey (MCS) of mental health and well-being at age 11 years in an Australian population cohort. BMJ Open 2017;7:e016244. doi:10.1136/bmjopen-2017-016244. 

This report provides a description of responses to the Middle Childhood Survey (MCS), a computerised self-report assessment of children’s mental health and well-being completed by 27 808 children aged 11-12 years in New South Wales (NSW) schools in 2015. The MCS sample includes 85.9% of students enrolled at the 829 schools who participated in the MCS (35% of eligible schools in NSW), and these participating schools and children are representative of the NSW population. The MCS measured Social Integration, Prosocial Behaviour, Peer Relationship Problems, Supportive Relationships (at Home, School and in the Community), Empathy, Emotional Symptoms, Conduct Problems, Aggression, Attention, Inhibitory Control, Hyperactivity-Inattention, Total Difficulties (internalising and externalising psychopathology), Perceptual Sensitivity, Psychotic-Like Experiences, Personality, Self-esteem, Daytime Sleepiness and Connection to Nature. This report presents response distributions on each of these indices, indicating the range of competencies and vulnerabilities in the population.