Manonai J, Khanacharoen A, Theppisai U, Chittacharoen A
Department of Obstetrics and Gynaecology, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
J Obstet Gynaecol Res. 2001 Dec;27(6):325-7. doi: 10.1111/j.1447-0756.2001.tb01280.x.
(1) To study the correlation between height and arm span in young, perimenopausal, and postmenopausal age groups, (2) To compare the height and arm span difference in each age group.
Four hundred and eighty-five women from menopause and gynaecologic clinics were included in the study. All subjects were measured for height and arm span. Correlations of height and arm span were obtained for each age group independently and the difference between the two measurements was examined.
Correlation coefficients (r = 0.9899) indicated a clear association between height and arm span measurements in young women. This correlation, however, decreased in perimenopausal and postmenopausal age groups. The mean differences between height and arm span were 0.263 +/- 0.445, 2.105 +/- 1.885, and 2.568 +/- 2.443 cm in the 3 groups, respectively. In comparison with the young age group, the mean difference between height and arm span in the perimenopausal and postmenopausal age groups were significantly different (p < 0.05) and it was the highest in the postmenopausal age group.
The height and arm span were well correlated and could be used interchangeably in young women. The correlation decreased with advancing age. Since arm span does not change with age, we can therefore conclude that there was a decrease in height among women of increasing age using arm span as the reference of the previous height.
（1）研究青年、围绝经期和绝经后年龄组身高与臂展之间的相关性，（2）比较各年龄组身高与臂展的差异。
本研究纳入了485名来自更年期和妇科诊所的女性。对所有受试者进行身高和臂展测量。分别获取各年龄组身高与臂展的相关性，并检查两项测量之间的差异。
相关系数（r = 0.9899）表明青年女性身高与臂展测量值之间存在明显关联。然而，这种相关性在围绝经期和绝经后年龄组中有所下降。三组身高与臂展的平均差异分别为0.263±0.445、2.105±1.885和2.568±2.443厘米。与青年年龄组相比，围绝经期和绝经后年龄组身高与臂展的平均差异有显著统计学意义（p < 0.05），且在绝经后年龄组中差异最大。
青年女性身高与臂展相关性良好，可相互替代使用。相关性随年龄增长而降低。由于臂展不随年龄变化，因此我们可以得出结论，以臂展作为既往身高的参考，随着年龄增长女性身高有所下降。
