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目的调查北京郊区50岁以上居民良性前列腺增生(BPH)的发病情况及危险因素。方法通过多阶段、随机整群抽样方法在北京郊区人群中抽取50岁以上男性居民394人,进行国际前列腺症状(IPSS)评分、前列腺B超检查、最大尿流率测定、PSA测定。结果 394名被调查人群中,总患病率为14.0%,其中50～59岁者患病率占该年龄组总人数的4.3%,60～69岁者为20.0%,70～79岁者为22.6%,80岁以上者为37.5%。可见BPH患病率随年龄增长而逐渐升高。最大尿流率<15 mL/s人数随年龄增长而逐渐增多;IPSS评分中重度人数随年龄增长而逐渐增多;血清PSA≥1.6 ng/mL者前列腺体积增大的风险随着年龄增加呈增高趋势。结论北京郊区50岁以上男性BPH患病率随年龄增长而逐渐升高,且随年代变化呈上升趋势。
Objective To investigate the incidence and risk factors of benign prostatic hyperplasia (BPH) among residents over the age of 50 in suburban Beijing. Methods A total of 394 male residents over the age of 50 were enrolled in the suburban population of Beijing by multistage and random cluster sampling method. The International Prostate Symptom Score (IPSS), Prostate Ultrasound, Maximal Urine Flow Rate and PSA were measured. Results Among 394 respondents, the overall prevalence rate was 14.0%. The prevalence rate among those aged from 50 to 59 accounted for 4.3% of the total number of the age group, 20.0% from 60 to 69 years old, and 70% to 79 years 22.6% and those over 80 were 37.5%. Visible BPH prevalence increased with age and gradually increased. The maximum uroflow rate <15 mL / s increased with age; the number of moderate-severe IPSS increased gradually with age; the risk of prostate enlargement increased with age when the serum PSA≥1.6 ng / mL . Conclusion The prevalence of BPH in men over the age of 50 in Beijing suburbs gradually increases with age, and increases with the age.