Hare E H, Moran P A
Br J Psychiatry. 1979 Feb;134:178-82. doi: 10.1192/bjp.134.2.178.
Parental age (at patient's birth) and birth order were studied in 623 male and 89 female patients diagnosed as homosexual, who were born in England and Wales and first attended the Maudsley Hospital between the years 1961-1975. For male patients, mean parental ages were significantly higher than expectation, and mean birth order was significantly later. Regression analysis indicated that the raised fathers' age was probably of more aetiological importance than the raised mothers' age. The results confirm those of previous studies. The female patients did not show a raised parental age or late birth order.
对623名男性和89名女性同性恋患者的父母年龄（患者出生时）和出生顺序进行了研究，这些患者出生在英格兰和威尔士，于1961年至1975年间首次就诊于莫兹利医院。对于男性患者，父母的平均年龄显著高于预期，平均出生顺序显著靠后。回归分析表明，父亲年龄的增加可能比母亲年龄的增加在病因学上更重要。研究结果证实了先前研究的结果。女性患者并未表现出父母年龄增加或出生顺序靠后。
