. Author manuscript; available in PMC: 2012 Sep 12.

Published in final edited form as: J Popul Res (Canberra). 2010 Sep 21;8(1):89–101. doi: 10.1007/s12546-010-9037-y

Table 3.

Estimation of mortality risks attributable to the maternal period, South Africa, Community Survey 2007 (events of past 12 months)

Age group	Population (Person-years lived)	Fertility rates (ASFR)	Percent time spent in maternal period	Mortality rates (ASDR)	Percent maternal deaths	Pregnancy-related deaths
Age group	Population (Person-years lived)	Fertility rates (ASFR)	Percent time spent in maternal period	Mortality rates (ASDR)	Percent maternal deaths	Expected	Observed

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
12–14	31593	0.0040	0.4	0.0015	0.0	0	0
15–19	51674	0.0729	6.5	0.0032	7.3	11	12
20–24	48358	0.1329	11.8	0.0093	7.6	53	34
25–29	39333	0.1315	11.6	0.0187	5.8	86	43
30–34	35898	0.1091	9.7	0.0242	4.6	84	40
35–39	33048	0.0701	6.2	0.0209	3.6	43	25
40–44	30463	0.0292	2.6	0.0192	1.5	15	9
45–49	26163	0.0065	0.6	0.0164	1.2	2	5
Total	296529	0.0768	6.8	0.0134	4.2	294	168

Note: Expected number of deaths (7) = product of population (2) by time spent in maternal period (4) by death rate (5). Observed number of deaths (8) = product of population (2) by death rate (5) by proportion maternal (6).