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作者认为尽管在勃起生理学、治疗、病因方面都有很大进展,但在流行病学方面还是一个很大空白。作者通过一项平均88年的随访研究,评估了40～60岁男性ＥＤ的发病率,并确定了危险因素与年龄,社会经济状况,疾病状态的关系。样本来源:1987～1989年从各城镇随机选取40～69岁男性1709
The author believes that although great progress has been made in the erectile physiology, treatment and etiology, there is still a big gap in epidemiology. By an average of 88 years of follow-up study, the authors assessed the incidence of ED in men aged 40-60 and identified the relationship between risk factors and age, socio-economic status, and disease status. Sample Source: From 1987 to 1989, 1709 males from 40 to 69 years were randomly selected from all cities and towns