Table 1.

Proportion of births included in sample, by state and territory

State or territory	NSW	QLD	VIC	SA	WA	TAS	ACT	NT	Total
Years of data provided	2000–2012	2007–2012	2000–2012	2000–2012	2000–2012	2005–2012	2000–2012	2000–2012
Number of births which met the criteria for this study	507 017	114 245	370 356	69 356	130 848	19 915	23 484	16 199	1 251 420
Proportion of total study sample (%)	40.5	9.1	29.6	5.5	10.5	1.6	1.9	1.3	100

ACT, Australian Capital Territory; NSW, New South Wales; NT, Northern Territory; QLD, Queensland; SA, South Australia; TAS, Tasmania; VIC, Victoria; WA, Western Australia.