van Roosmalen J
Mbozi Designated District Hospital, Tanzania.
Trop Geogr Med. 1988 Jul;40(3):196-200.
The prevalence of twin pregnancies in two rural hospitals in the South Western Highlands of Tanzania ranged from 15 to 20 per 1,000 births. The literature on the generally assumed high twinning rates in the whole of Africa is reviewed. High prevalence figures can be the result of hospital selection, as most African studies are hospital-based. Only from Nigeria, one population-based study revealed a rate of 45 per 1,000. In both hospitals perinatal mortality in twin births was strikingly low, especially when birthweight was at least 1,500 g: between 30 and 40 per 1,000 births. It is argued that there is no place for a more liberal use of caesarean section to further reduce perinatal mortality.
坦桑尼亚西南部高地的两家乡村医院中，双胎妊娠的发生率为每1000例分娩中有15至20例。本文回顾了关于整个非洲普遍认为双胎率较高的文献。高发生率可能是由于医院选择造成的，因为大多数非洲研究都是基于医院的。只有尼日利亚的一项基于人群的研究显示，双胎率为每1000例中有45例。在这两家医院中，双胎分娩的围产期死亡率都极低，尤其是当出生体重至少为1500克时：每1000例分娩中有30至40例。有人认为，更广泛地使用剖宫产来进一步降低围产期死亡率是没有必要的。
