Leszczyńska-Gorzelak B, Oleszczuk J J, Kiczyńska A, Sawulicka-Oleszczuk H, Keith L G
Klinika Połoznictwa i Perinatologii Akademii Medycznej w Lublinie.
Ginekol Pol. 2000 Nov;71(11):1327-33.
The epidemiology of multiple pregnancy is complex and depends on various factors including age, race, genetic and environmental factors, season of conception and, more recently, iatrogenic factors. In recent years, twinning rate increased dramatically especially in countries where ovulation induction and assisted reproductive technologies are widely used. Multiple pregnancies are most frequent in Nigeria where majority of them are dizygotic. The lowest frequency of twinning is observed in Japan where almost 70% of multiples are monozygotic. This paper discusses genetic, environmental and sociocultural factors which are related to the "epidemic" of multiples.
多胎妊娠的流行病学情况复杂，取决于多种因素，包括年龄、种族、遗传和环境因素、受孕季节，以及最近出现的医源性因素。近年来，双胎率急剧上升，尤其是在排卵诱导和辅助生殖技术广泛应用的国家。多胎妊娠在尼日利亚最为常见，其中大多数为异卵双胎。双胎发生率最低的是日本，那里几乎70%的多胞胎是同卵双胎。本文讨论了与多胞胎“流行”相关的遗传、环境和社会文化因素。
