[Effect of menopausal time on osteal density].

Osteal density of 189 Kidney Deficiency (KD) women displayed after menopause as determined by the method of gamma-ray absorption. The result showed that the osteal density of the KD women was significantly lower than those women of same ages without KD (P < 0.001) and the osteal density of the women whose menopause occurred before the age of 45 was lower than that after 45 (P < 0.05). This suggested that the prematurity of ovarial function and the decrease of estrogen ahead of time might be the cause. Therefore, the earlier the menopause, the lower the osteal density, as well as the more serious the KD well be.