Maternal Newborn Health Unit, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool L35QA, UK.
Br Med Bull. 2011;99:25-38. doi: 10.1093/bmb/ldr033.
The maternal mortality ratio (MMR) is a key indicator for measurement of progress against Millennium Development Goal 5 (MDG 5). For many countries, especially those with a presumed high number of maternal deaths, only estimates are available.
Recent global estimates and the reasons for high maternal mortality are reviewed.
There is international consensus that efforts to reduce maternal mortality globally need to be intensified.
Many countries lack accurate data on number of deaths in women of reproductive age and number of births. Therefore, statistical modelling has been used to calculate estimates, which generally have wide confidence intervals and may be disputed by individual countries.
There is renewed focus on MMR as 2015 approaches.
There is a need to adapt and implement methods for measuring maternal mortality to generate more accurate estimates. More data on cause of death are needed.
孕产妇死亡率（MMR）是衡量千年发展目标 5（MDG5）进展情况的关键指标。对于许多国家，特别是那些据推测孕产妇死亡人数较多的国家，目前只有估计数。
本文回顾了最近的全球估计数和导致孕产妇死亡率高的原因。
国际社会一致认为，需要加强全球范围内降低孕产妇死亡率的努力。
许多国家缺乏关于育龄妇女死亡人数和分娩人数的准确数据。因此，统计模型已被用于计算估计数，但这些估计数的置信区间通常很宽，可能会受到个别国家的质疑。
随着 2015 年的临近，人们重新关注孕产妇死亡率。
需要调整和实施衡量孕产妇死亡率的方法，以生成更准确的估计数。还需要更多关于死因的数据。
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