曾有多次生育经历的女性所生新生儿中的男女比例

Male to female ratio in newborns of grand grand multiparous women.

作者信息

Almagor M, Schwed P, Yaffe H

机构信息

Department of Obstetrics and Gynecology, Bikur Cholim Hospital, Jerusalem, Israel.

出版信息

Hum Reprod. 1998 Aug;13(8):2323-4. doi: 10.1093/humrep/13.8.2323.

DOI:10.1093/humrep/13.8.2323

PMID:9756320

Abstract

The male to female ratio in newborns of grand grand multiparous women was evaluated in 569 Jewish Orthodox women and 28 Muslim women. A total of 882 babies was born on the > or = 10th delivery; 460 (52.2%) were males and 422 (47.8%) were females (sex ratio = 1.06). Newborn sex ratio did not significantly change with respect to birth order or maternal age. It is suggested that parity and increasing maternal age do not affect the sex ratio of newborns and that ethnic and environmental variables may play a role in the deviations in offspring sex ratio observed among different populations.

摘要

对569名犹太东正教妇女和28名穆斯林妇女所生新生儿的男女比例进行了评估。在第10次及以上分娩中总共出生了882名婴儿；其中460名（52.2%）为男性，422名（47.8%）为女性（性别比 = 1.06）。新生儿性别比并未随出生顺序或母亲年龄而发生显著变化。研究表明，产次和母亲年龄增加并不影响新生儿的性别比，种族和环境变量可能在不同人群中观察到的后代性别比偏差中发挥作用。