3301.0 - Births, Australia, 2017 Quality Declaration 
Latest ISSUE Released at 11:30 AM (CANBERRA TIME) 11/12/2018   
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APPENDIX DIFFERENCES BETWEEN COLLECTIONS


BIRTH REGISTRATIONS COMPARED TO THE PERINATAL DATA COLLECTION

Birth registrations data in this publication are not the only births data available in Australia. The Australian Institute of Health and Welfare (AIHW) also collects birth data from midwives and other health professionals who attend births. These data are published annually in Australia's Mothers and Babies.

As information from these two collections are from different sources, the number of live births may differ. Births from the AIHW National Perinatal Data Collection are released on a year of occurrence basis, while registered births from the ABS Birth Registrations collection are predominantly released on a year of registration basis. The AIHW National Perinatal Data Collection reported the occurrence of 312,683 live births in Australia in 2016 (the latest available data), 0.5% more than the 311,104 births registered in the same year. Since 2002 the size of the difference between the two collections has varied between -2.5% and 3.5%.