Malina R M, Chumlea C, Stepick C D, Lopez F G
Ann Hum Biol. 1977 Nov;4(6):551-8. doi: 10.1080/03014467700002541.
Status quo menarcheal information was collected for a mixed urban colonia and rural sample of 315 girls in the Valley of Oaxaca, Mexico. Comparative status quo data for girls from four major urban centres in Mexico, and for a rural sample were also analysed. Median age at menarche (estimated by probit analysis) for Oaxaca girls was 14.27 +/- 0.20 years, about 0.5 year later than that for the rural sample from Tampico-Altamira, Tamaulipas (13.79 +/- 0.20 years), and approximately 1.5 years later than that for girls from the four urban centres in Mexico (12.55 +/- 0.10, 12.61 +/- 0.08, 12.75 +/- 0.10, 12.76 +/- 0.07 years). The timing of menarche in Oaxaca girls is similar to that for rural Mayans in Guatemala. Ages at menarche for urban Mexican girls are somewhat lower than those for girls of North-west European ancestry and of North American girls of European ancestry.
收集了墨西哥瓦哈卡山谷315名城市混合殖民地和农村女孩的初潮现状信息。还分析了来自墨西哥四个主要城市中心女孩的比较现状数据以及一个农村样本的数据。瓦哈卡女孩的初潮中位年龄（通过概率分析估计）为14.27±0.20岁，比塔毛利帕斯州坦皮科 - 阿尔塔米拉农村样本（13.79±0.20岁）晚约0.5岁，比墨西哥四个城市中心的女孩（12.55±0.10、12.61±0.08、12.75±0.10、12.76±0.07岁）晚约1.5岁。瓦哈卡女孩的初潮时间与危地马拉农村玛雅女孩相似。墨西哥城市女孩的初潮年龄略低于西北欧血统女孩和欧洲血统北美女孩。
