Relethford J H, Lees F C
Am J Phys Anthropol. 1981 May;55(1):81-8. doi: 10.1002/ajpa.1330550111.
Cross-sectional data, consisting of anthropometric measurements for 347 adults males and 261 adult females in western Ireland measured during the 1930s, were used to determine the effects of aging and secular change upon stature. Estimates of statural loss due to aging were obtained using partial regression of stature on age while controlling for subischial length, and regression of the difference between observed stature and maximum predicted stature on age. Males show the effects of aging to a greater extent than do females. After correction for the effects of aging, the adjusted values of stature were progressed on age to estimate secular trend of stature. For males, there is a general increase of stature with time, excepting those born around 1878, while females generally show random variation with time. Both male and female adjusted stature decrease sharply around 1878, for which alternative historical explanations are proposed, relating to differential migration and survival.
横断面数据由20世纪30年代在爱尔兰西部测量的347名成年男性和261名成年女性的人体测量数据组成，用于确定衰老和长期变化对身高的影响。在控制坐骨下长度的同时，通过身高对年龄的偏回归以及观察到的身高与最大预测身高之间的差异对年龄的回归，获得了因衰老导致的身高损失估计值。男性比女性在更大程度上显示出衰老的影响。在校正衰老的影响后，将身高的调整值随年龄进行分析，以估计身高的长期趋势。对于男性，除了大约1878年出生的那些人之外，身高总体上随时间增加，而女性通常随时间呈现随机变化。在1878年左右，男性和女性的调整后身高都急剧下降，对此提出了与差异迁移和生存相关的不同历史解释。
