The proportion of mothers teenage mothers (aged under 20) has decreased over time (4.0% in 2009 compared with 1.9% in 2019), and the proportion of mothers aged 40 and over has increased (4.0% in 2009 compared with 4.5% in 2019).
Mothers aged 29 or under were more likely than those aged 30 and over to be public patients and to give birth in public hospitals.
Three in five Indigenous mothers were aged between 20 and 29 (60%), with most aged 20–24 (31%). The proportion of Indigenous teenage mothers (aged under 20) has been falling over time, from 20% in 2009 to 11% in 2019, with a corresponding increase in those aged 25–29 (from 24% to 29%).