Hernández B, Chirinos J, Romero M, Langer A
Center for Public Health Research, National Institute of Public Health, Cuernavaca, Mexico.
Int J Gynaecol Obstet. 1994 Sep;46(3):285-9. doi: 10.1016/0020-7292(94)90407-3.
To measure maternal mortality levels in rural areas of Mexico.
In a cross-sectional study, a census of 13,378 households was carried out in the municipalities of Yecapixtla and Tlaltizapan, Morelos, Mexico. Information on 10,443 subjects from 12 to 49 years old was included in the analysis. An indirect method of measuring maternal mortality--the sisterhood method--was used to estimate maternal mortality. Information about the number of sisters of the interviewees who died due to maternal causes was collected in the census. With this information, estimates of maternal mortality related to a period of 10-12 years before the application of the census were obtained. An innovation to the original method was the calculation of a confidence interval for the estimated maternal mortality rate (MMR).
The MMR in this region was 18.68/10,000 live births (95% CI 15.79-21.58/10,000 live births). The average risk of dying due to maternal causes was 1 in 87 for women between 12 and 49 years of age.
The sisterhood method was effective for estimating maternal mortality in a small region, with no previous information about this indicator. The method proved to be useful for identifying a priority region for the implementation of maternal mortality reduction programs. Furthermore, the method was particularly convenient since it was applied as part of a multipurpose survey.
测量墨西哥农村地区的孕产妇死亡率。
在一项横断面研究中，对墨西哥莫雷洛斯州耶卡皮斯特拉和特拉尔蒂萨潘市的13378户家庭进行了普查。分析纳入了10443名年龄在12至49岁之间的受试者的信息。采用一种间接测量孕产妇死亡率的方法——姐妹法——来估计孕产妇死亡率。在普查中收集了受访者因孕产妇原因死亡的姐妹数量的信息。利用这些信息，获得了与普查实施前10至12年期间相关的孕产妇死亡率估计值。对原始方法的一项创新是计算估计孕产妇死亡率（MMR）的置信区间。
该地区的孕产妇死亡率为每10000例活产18.68例（95%置信区间为每10000例活产15.79 - 21.58例）。12至49岁女性因孕产妇原因死亡的平均风险为87分之一。
姐妹法对于在没有该指标先前信息的小区域估计孕产妇死亡率是有效的。该方法被证明有助于确定实施降低孕产妇死亡率项目的优先区域。此外，该方法特别方便，因为它是作为多用途调查的一部分应用的。
