Bangham C R, Sacherer J M
Ann Hum Biol. 1980 Jul-Aug;7(4):323-30. doi: 10.1080/03014468000004391.
Data are reported on ages at menarche, first marriage and first childbirth and on completed fertility, in Sherpa populations of Nepal at moderate altitude (2200-2600 metres). Comparison of these data with similar data from two high-altitude surveys (Weitz et al. 1978, Gupta, 1978) indicates that cultural factors, examined in detail by Weitz et al. (1978), are probably insufficient to explain the lower completed fertility in high-altitude Sherpas. It is concluded that this lower fertility is mostly attributable to lower fecundity, and partly to the later mean age at first childbirth and the higher proportion of celibate nuns in high-altitude Sherpas.
报告了尼泊尔中等海拔（2200 - 2600米）夏尔巴人群的初潮年龄、初婚年龄和首次生育年龄以及生育情况的数据。将这些数据与两项高海拔调查（韦茨等人，1978年；古普塔，1978年）的类似数据进行比较表明，韦茨等人（1978年）详细研究的文化因素可能不足以解释高海拔夏尔巴人较低的生育情况。得出的结论是，这种较低的生育率主要归因于较低的生育力，部分归因于首次生育的平均年龄较晚以及高海拔夏尔巴人中未婚尼姑的比例较高。
