TABLE 2.

Causes and associated 12-month incidence rates of post-partum death, ranked in descending order, among women delivering in California, 2010-2012.

Underlying cause	N deaths	Incidence rate (per 100,000 person-years)	95% CI around incidence rate
Obstetric complications/disease	69	6.52	5.15, 8.25
Drug-related	39	3.68	2.69, 5.04
Circulatory system disease	36	3.40	2.45, 4.71
Cancer	34	3.21	2.29, 4.49
Other unintentional injuries	33	3.12	2.22, 4.38
Homicide	17	1.61	1.00, 2.58
Suicide	15	1.42	0.85, 2.35
All other causes	57	5.38	4.15, 6.98