High caesarean section rates among women over 30. Effect of age is continuous and international.
Marwick
J C
JC
Lynn
R
R
D000293:Adolescent; D000328:Adult; D002585:Cesarean Section / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008423:Maternal Age; D009520:New Zealand; D011247:Pregnancy