Table 2 Maternal mortality estimate using the sisterhood method for the reference period 2001 using in Jigawa State, Nigeria
From: High maternal mortality in Jigawa State, Northern Nigeria estimated using the sisterhood method
Age group of respondent (yrs) | Number of respondents | Number of sisters survived age > 15 yrs | Number of sisters who died | Number of maternal deaths | Age-specific adjustment | Sisters exposed (B) | Lifetime total risk | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
k | e | C | r | f | β = ef | Q = r/β | |||||
n | % | n | % | n | % | n | % | n | |||
15–19 | 1397 | 19.76 | 1786 | 16.30 | 143 | 13.94 | 30 | 10.00 | 0.107 | 191 | 0.157 |
20–24 | 1476 | 20.88 | 2234 | 20.39 | 200 | 19.49 | 64 | 21.33 | 0.206 | 460 | 0.139 |
25–29 | 1328 | 18.79 | 2092 | 19.09 | 157 | 15.30 | 45 | 15.00 | 0.343 | 718 | 0.063 |
30–34 | 1039 | 14.70 | 1718 | 15.68 | 158 | 15.40 | 43 | 14.33 | 0.503 | 864 | 0.050 |
35–39 | 915 | 12.94 | 1632 | 14.89 | 177 | 17.25 | 61 | 20.33 | 0.664 | 1084 | 0.056 |
40–44 | 646 | 9.14 | 1093 | 9.98 | 146 | 14.23 | 44 | 14.67 | 0.802 | 877 | 0.050 |
45–49 | 268 | 3.79 | 402 | 3.67 | 45 | 4.39 | 13 | 4.33 | 0.900 | 362 | 0.036 |
Total | 7069 | 100.0 | 10957 | 100.0 | 1026 | 100.0 | 300 | 100.0 | 4555 | 0.066 | |