Zein A Z
Ethiop Med J. 1989 Jan;27(1):21-6.
The frequency of multiple births was analysed using data on 12287 deliveries conducted at the Gondar College of Medical Sciences Teaching Hospital in Northwestern Ethiopia, between 1977 and 1985. There were a total of 183 multiple births giving a frequency of 14.9 per thousand deliveries. The prevalence rates of twins and triplets were 14.4 and 0.49 per thousand deliveries respectively. Increasing rates of twinning by maternal age and parity were observed, the peak prevalence was seen after the sixth parity and in mothers 40-44 years old. Using Weinberg's differential method, the monozygous and dizygous twinning rates per thousand deliveries were 4.8 and 11.7 respectively. The latter rate tended to increase with both parity and maternal age. The findings of this study suggest a lower frequency of multiple births than in previous reports from Ethiopia and other African countries and hence are not characteristic of the continent. The rates found occupy an intermediate position between those for Caucasians and Africans. Multicentre data should, therefore, be analysed to confirm the findings of this and other reports concerning multiple births in Ethiopia.
利用1977年至1985年间在埃塞俄比亚西北部贡德尔医学院教学医院进行的12287例分娩数据，对多胎分娩的频率进行了分析。共有183例多胎分娩，每千例分娩的频率为14.9。双胞胎和三胞胎的患病率分别为每千例分娩14.4和0.49。观察到双胞胎的发生率随产妇年龄和产次增加，最高患病率出现在第六产次之后以及40 - 44岁的母亲中。采用温伯格差分法，每千例分娩的单卵双胎和双卵双胎发生率分别为4.8和11.7。后者的发生率倾向于随产次和产妇年龄增加。本研究结果表明，多胎分娩的频率低于埃塞俄比亚和其他非洲国家以前的报告，因此并非该大陆的特征。所发现的发生率介于白种人和非洲人之间。因此，应分析多中心数据，以证实本报告及其他有关埃塞俄比亚多胎分娩报告的结果。
