Agreement between self-reported perinatal outcomes and administrative data in New South Wales, Australia

Table 1 Perinatal outcomes in New South Wales, Australia: timelines for linked self-reported and administrative datasets

Datasets and outcomes	ALSWH surveys
Australian Longitudinal Study on Women’s Health, NSW only^a
Gestational hypertension	2-6
Gestational diabetes	2-6
Premature birth
36 weeks or less	2-4
No specified gestational cut-off	5-6
Low birth weight	4-6
	Data from	To
Perinatal Data Collection
Hypertensive disorders^b
Pregnancy induced hypertension or preeclampsia	1 January 1994	31 December 2005
Pregnancy induced hypertension – proteinuria	1 January 2006	31 December 2010
Pregnancy induced hypertension – non proteinuria	1 January 2006	31 December 2010
Gestational hypertension	1 January 2011	31 December 2011
Preeclampsia	1 January 2011	31 December 2011
Gestational diabetes	1 January 1994	31 December 2011
Gestational age	1 January 1994	31 December 2011
Birth weight	1 January 1994	31 December 2011

ALSWH Australian Longitudinal Study on Women’s Health
^aIncludes all participants who answered ≥1 Australian Longitudinal Study on Women’s Health survey and had at least one record in the Perinatal Data Collection
^bHypertensive disorders were the collective term used to classify gestational hypertension and preeclampsia as multiple terms were used over time

ISSN: 1471-2393