Table 3. Female probability of dying (35q15) and the maternal mortality ratio (and their coefficients of variation) obtained from sibling histories data reported by women only and pooled data reported by women and men for the 1–5 calendar years preceding the survey1.
Female mortality | ||||||||||
Country | Year of survey | Based on reports of women | Based on reports of women & men | % Decrease in CI width | ||||||
35q15 | 95% confidence interval | Coefficient of variation | 35q15 | 95% confidence interval | Coefficient of variation | |||||
Cameroon | 2004 | 0.212 | 0.190 | 0.234 | 5.3 | 0.216 | 0.197 | 0.236 | 4.6 | 12 |
Congo | 2005 | 0.252 | 0.216 | 0.288 | 7.3 | 0.242 | 0.211 | 0.273 | 6.5 | 15 |
Indonesia | 2007 | 0.079 | 0.066 | 0.092 | 8.2 | 0.079 | 0.068 | 0.090 | 7.3 | 11 |
Malawi | 1992 | 0.221 | 0.180 | 0.263 | 9.5 | 0.213 | 0.176 | 0.251 | 8.9 | 9 |
Nigeria | 2008 | 0.167 | 0.153 | 0.180 | 4.1 | 0.169 | 0.157 | 0.181 | 3.5 | 14 |
Tanzania | 1996 | 0.178 | 0.147 | 0.210 | 9.0 | 0.179 | 0.151 | 0.207 | 8.0 | 11 |
Uganda | 1995 | 0.279 | 0.242 | 0.315 | 6.7 | 0.282 | 0.252 | 0.313 | 5.5 | 16 |
Zambia | 2007 | 0.454 | 0.406 | 0.502 | 5.4 | 0.437 | 0.404 | 0.471 | 4.0 | 29 |
Zimbabwe | 1994 | 0.145 | 0.123 | 0.168 | 7.9 | 0.155 | 0.133 | 0.178 | 7.5 | 2 |
Zimbabwe | 2005–06 | 0.465 | 0.438 | 0.492 | 3.0 | 0.477 | 0.453 | 0.502 | 2.5 | 8 |
Maternal Mortality Ratio | ||||||||||
Country | Year of survey | Based on reports of women | Based on reports of women & men 2 | % Decrease in CI width | ||||||
MMRatio | 95% confidence interval | Coefficient of variation | MMRatio | 95% confidence interval | Coefficient of variation | |||||
Cameroon | 2004 | 736 | 567 | 904 | 11.7 | 743 | 579 | 906 | 11.2 | 3 |
Congo | 2005 | 944 | 542 | 1346 | 21.7 | 899 | 522 | 1275 | 21.4 | 6 |
Indonesia | 2007 | 219 | 146 | 293 | 17.2 | 217 | 145 | 289 | 16.9 | 3 |
Malawi | 1992 | 747 | 413 | 1081 | 22.8 | 713 | 398 | 1027 | 22.5 | 6 |
Nigeria | 2008 | 709 | 598 | 819 | 8.0 | 715 | 608 | 822 | 7.6 | 3 |
Tanzania | 1996 | 620 | 444 | 797 | 14.5 | 616 | 439 | 794 | 14.7 | 0 |
Uganda | 1995 | 661 | 463 | 859 | 15.3 | 669 | 475 | 863 | 14.8 | 2 |
Zambia | 2007 | 564 | 384 | 745 | 16.3 | 542 | 372 | 711 | 16.0 | 6 |
Zimbabwe | 1994 | 435 | 275 | 594 | 18.7 | 419 | 266 | 572 | 18.7 | 4 |
Zimbabwe | 2005–06 | 749 | 535 | 963 | 14.6 | 780 | 567 | 994 | 14.4 | 0 |
In order to pool data , the data obtained from women were weighted in a similar manner to data obtained from men to adjust for selection bias; however, women’s data had to be further adjusted for zero survival bias. The deaths and exposure reported by women were weighted by the inverse of the number of surviving siblings of the respondent to adjust for selection bias and further weighted by the inverse of the probability of being reported at all to adjust for zero survival bias (men provide information on women sibships with no surviving members).
The PMDF (obtained from women) is multiplied by female mortality (obtained from pooled data) to generate the MMRatio.