PMID- 12930682 OWN - NLM STAT- MEDLINE DCOM- 20040204 LR - 20061115 IS - 0376-2491 (Print) IS - 0376-2491 (Linking) VI - 83 IP - 15 DP - 2003 Aug 10 TI - [A survey of the long-term incidence rate of benign prostate hyperplasia after vasectomy]. PG - 1303-5 AB - OBJECTIVE: To study the relationship of the long-term incidence rate of benign prostate hyperplasia (BPH) after vasectomy to age and time after operation. METHOD: Questionnaire survey, physical examination, and ultrasonography were conducted among 850 healthy males, aged 55 - 76 who underwent vasectomy more than 20 years before and 390 healthy males, aged 53 - 75, who had not undergone vasectomy in Yichang, Hubei province, selected by randomized cluster sampling. The data such as international prostate symptom scoring (IPSS), quality of life (QOL) index, maximum urine flow rate (MFR), and average flow rate (AFR), digital rectal examination (DRE), volume of prostate gland (V), and residual urine (R) were analyzed. RESULTS: The general BPH incidence rate of the vasectomy group was 10.8%, significantly lower than that of the control group (40.8%, P < 0.01). The age-specific BPH incidence rates in the vasetomy group were all significantly lower than those of the control group, especially that of the subjects aged over 70 (10.8% vs. 56.5%, P < 0.001). The BPH incidence rate of those who had undergone vasectomy 25 years or over before was 7.8%, significantly lower than that of those who had undergone vasectomy 20 years before (13.2%, P < 0.05), but not significantly difference from that of those who had undergone vasectomy 30 years or over before (5.5%, P > 0.05). The volumes of prostate gland in all age subgroups were significantly smaller in the vasectomy group than in the control group. CONCLUSION: Vasectomy reduces the incidence rate of BPH significantly. FAU - Nie, Yong AU - Nie Y AD - Institute of Andrology, Three Gorges University Medical College, Yichang 443003, China. FAU - Guo, Xian-kun AU - Guo XK FAU - Gao, Wu-yang AU - Gao WY FAU - Zhang, Yan AU - Zhang Y FAU - Li, Wen-li AU - Li WL FAU - Cheng, Qi-xiu AU - Cheng QX FAU - Bian, Jiang AU - Bian J FAU - Wang, Yi AU - Wang Y FAU - Zhou, Cheng-gui AU - Zhou CG FAU - Cheng, Shi-ping AU - Cheng SP LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Zhonghua Yi Xue Za Zhi JT - Zhonghua yi xue za zhi JID - 7511141 SB - IM MH - Age Factors MH - Aged MH - Humans MH - Incidence MH - Male MH - Middle Aged MH - Prostatic Hyperplasia/*epidemiology MH - Time Factors MH - *Vasectomy EDAT- 2003/08/22 05:00 MHDA- 2004/02/05 05:00 CRDT- 2003/08/22 05:00 PHST- 2003/08/22 05:00 [pubmed] PHST- 2004/02/05 05:00 [medline] PHST- 2003/08/22 05:00 [entrez] PST - ppublish SO - Zhonghua Yi Xue Za Zhi. 2003 Aug 10;83(15):1303-5.