Australia's mothers and babies 2010. The average age of mothers has increased gradually, from 29.2 years in 2001 to 30.0 years in 2010. The caesarean section rate has shown an upward trend over the last 10 years, increasing from 25.4% nationally in 2001 to a peak of 31.6% in 2010.
Smoking while pregnant was reported by 14% of all mothers and by 37% of teenage mothers. About half of Indigenous mothers reported smoking during their pregnancy. Indigenous mothers were also generally younger than non-Indigenous mothers, with an average age of about 25 years.