Bengtsson C, Lindquist O, Redvall L
Acta Obstet Gynecol Scand. 1981;60(3):269-75. doi: 10.3109/00016348109158130.
A population study of women in Göteborg, Sweden, was carried out in 1968--69. Altogether 1 462 women participated (participation rate 90.1 per cent). Five age strata were studied: 38, 46, 50, 54 and 60 (women born in 1930, 1922, 1918, 1914 and 1908, respectively). The same women were re-studied in 1974--75. At this time 1 302 women participated, corresponding to 89.1 per cent of those studied in 1968--69 and 80.3 per cent of those initially sampled. The vast majority of the women had a natural menopause. The median age at the menopause was found to be about 50. The criteria for definition of menopause are discussed. No support was found for the theory of increased menopausal age with time. Estrogen therapy of postmenopausal women was found to be much more common in 1974--75 than in 1968--69.
1968 - 1969年，在瑞典哥德堡对女性进行了一项群体研究。共有1462名女性参与（参与率为90.1%）。研究了五个年龄层：38岁、46岁、50岁、54岁和60岁（分别为1930年、1922年、1918年、1914年和1908年出生的女性）。1974 - 1975年对同一批女性进行了再次研究。此时有1302名女性参与，占1968 - 1969年研究对象的89.1%，占最初抽样对象的80.3%。绝大多数女性经历自然绝经。绝经的中位年龄约为50岁。讨论了绝经定义的标准。未发现支持绝经年龄随时间增加这一理论的证据。发现1974 - 1975年绝经后女性接受雌激素治疗的情况比1968 - 1969年普遍得多。
