出生性比研究

人类学学报 ›› 2000, Vol. 19 ›› Issue (01): 57-64.

出生性比研究

王洪林

出版日期:2000-03-15 发布日期:2000-03-15

A study of new-born infants' sex ratio

Wang Honglin

Online:2000-03-15 Published:2000-03-15

摘要/Abstract

摘要： 对 1971— 1993年云南昆明、玉溪、红河、思茅、西双版纳、大理、楚雄、丽江等 8地、州、市 66个医疗单位接生的新生儿资料进行调查 ,获取401454例新生儿性别等有关资料。发现 :( 1 )出生性比在上升 ,由 1971年的 104 .06上升到 1993年的 108.57;1974年最低 ,为 101 .11 ,1991年最高 ,为 111 .87。 23年中 ,平均每年上升 0 .47。 ( 2 )一年之中 ,新生儿出生人数的高峰期为 10、 11、 12等 3个月 ,峰顶为 11月 ,占 11 .01% ;出生性比的峰顶为 3、4、6、7、9等5个月 ,最高为 9月 ,达 109.47。 ( 3)城、乡出生性比差异显著。不论胎次 (一、二胎 )和月份 ( 8、 9两月除外 ) ,市、县城区 ,出生性比均显著高于农村。 ( 4) 1 979年以前的出生性比在101 .11— 105 .67之间 ,1980年以后的出生性比在 104 .17— 111 .87之间。 ( 5 )提出了维持性平衡的6点对策。

关键词: 出生性比;体质人类学;中国人;云南

Abstract: An examination of 401454 new-born infants' sex data gathered from 66 medical institutions in 8 prefectures ( or municipalities) of Yunan from 1971 to 1993 reveals; 1) the new born infants, sex ratio has been increasing from 104. 06 in 1971, to 108. 57 in 1993, with the lowest year ratio of 101. 11 in 1994, the highest ratio of 111. 87 in 1991 and an average yearly increase of 0. 42; 2) the birth peaks appeared in October, November and December respectively , with the highest peak in November, and their highest sex ratio peaks scattered in the five months of March, April, June, July and September ( the highest in 109. 47 in September); 3) there is a significant different between the sex ratio in urban area and that in rural area , with the former higher than the latter; 4) the sex ratio in and before 1979 varies between 101. 11 and 105. 67, and that in and after 1980 varies between 104. 11 and 111. 87; 5) the author puts forward six strategic measures for keeping the sex ratio balance.

Key words: Sex ratio, Physical anthropology , Chinese, Yunnan

王洪林. 出生性比研究[J]. 人类学学报, 2000, 19(01): 57-64.

Wang Honglin. A study of new-born infants' sex ratio[J]. Acta Anthropologica Sinica, 2000, 19(01): 57-64.