Data sources
| Data custodian | Dataset | Variables | Years of data extraction |
| WA Department of Health | Birth Registrations (child) | Date of birth/gender/birth weight/mother and father’s occupation, indigenous status, age and place of birth/postcode, SEIFA, ARIA | 1 January 1985 to 31 December 2011 |
| Midwives Notification System (child) | Mother details: maternal age/marital status/ethnic origin/smoke during pregnancy Child details: indigenous status/date of birth/gender/status of baby at birth/infant weight/geocoding (postcode, SEIFA, ARIA) | 1 January 1985 to 31 December 2011 | |
| Mortality Register (child and mother) | Death, date of death and cause of death (ABS and ICD codes) | 1 January 1985 to 17 May 2014 | |
| Hospital Morbidity Data Collection (child and mother) | Admission and separation dates/length of stay/principal ICD diagnosis codes/external cause of injury ICD codes/DRG | 1 January 1985 to 31 December 2013 | |
| Emergency Department Data Collection (child and mother) | Triage code/visit type/presentation date/referral source/principal diagnosis/symptom/MDC/injury/external cause | 1 January 2002 to 31 December 2014 | |
| Mental health information system | Primary diagnosis/start and end dates of episode/health professional type/gender/date of birth | 1 January 1985 to 30 June 2014 | |
| WA Department of Corrective Services | Total Offender Management Solution (child and mother) | Adult and juvenile custodial record/reception and discharge facility/remand, reception, discharge dates/release type/ANCO and ASOC codes/sentence type | 1 January 1985 to 10 September 2015 |
| Community Business Information System (child and mother) | Adult community corrections order/order type/start and end dates/nature of offence (ANCO and ASOC codes) | 1 January 1985 to 14 September 2015 | |
| Interim Field System (child and mother) | Juvenile community corrections order/service type description/court order/start and end dates/ANCO and ASOC codes | 1 January 1985 to 10 September 2015 | |
| WA Department of Child Protection | Child Protection Data (child) | Child welfare concern/person believed responsible/substantiation type/child placement by type, date/protection orders | 1 January 1985 to 31 December 2013 |
ABS, Australian Bureau of Statistics; ANCO, Australian National Classification of Offences; ARIA, Accessibility/Remoteness Index of Australia; ASOC, Australian Standard Offence Classification; DRG, diagnosis-related group; ICD, International Classification of Diseases; SEIFA, Socio-Economic Index for Areas; MDC, major diagnostic category.