ObjectiveSetting Rural communities and antenatal clinics, Mbulu and Hanang districts, Arusha region, Tanzania.Population From a household survey 2043 men and women aged 15-60, and from an antenatal clinic survey 4172 women aged 15-59.Method The indirect sisterhood method.Main outcome measures The risk of maternal deaths per 100,000 live births (maternal mortality ratio),Results The risk of a maternal death per 100,000 live births was 362 (95% CI 269-456) and 444 (95% CI 371-517) for the household and antenatal clinic surveys, respectively. The lifetime risk of maternal death was 1 in 38 and 1 in 31, respectively, for the two surveys. A significantly lower risk of maternal death was observed for the respondents attending antenatal clinics closer to the hospital than for those attending clinics further away: 325 (95% CI 237413) compared with 561 (95% CI 446677) per 100,000 live births. Lifetime risk of maternal death was 1 in 42 and 1 in 25, respectively.Conclusions The risk of maternal death per 100,000 live births in this area were comparatively high, but in our survey substantially lower than in previous surveys in Tanzania. Increasing distance from the antenatal clinics to the hospital was associated with higher maternal mortality. There was no significant difference between results based on household and antenatal clinic data, suggesting that accessible health facility data using the sisterhood method may provide a basis for local assessment of maternal mortality in developing countries.To estimate maternal mortality in two samples of a population in northern Tanzania.and the lifetime risk of a maternal death. This quantity is often referred to as the maternal mortality ratio. Because the number of pregnancies per woman is high in many developing countries, the lifetime risk of death in connection with a pregnancy is also an important measure. The lifetime risk is the probability of dying of maternal causes cumulated across the reproductive years (35 years). Worldwide, new approaches for estimating maternal mortality levels have been sought, owing to the lack of sufficient national statistics in many countries. In 1996 a report was published by the World Health Organisation, using new models for estimation based on the former statistid.
INTRODUCTIONBased on the new figures, the annual number of maternal deaths globally is estimated to be approximately 585,000. In Eastern Africa the estimate is 97,000