[Sexual function of middle-aged and older males in Beijing: urban versus suburban area].
2013
OBJECTIVE: To investigate and compare the prevalence of erectile dysfunction, hyposexuality and ejaculation disorder among middle-aged and older males in the urban and suburban areas of Beijing. METHODS: Using the random sampling method, we selected 1 656 men aged > or = 50 years from 15 communities in Beijing. We recorded their scores on the International Index of Erectile Function-5 (IIEF-5) and Brief Male Sexual Function Inventory for Urology (O'Leary 1995), and analyzed the obtained data using SPSS 17.0. RESULTS: Totally, 1 644 of the subjects were qualified for the study, 1 244 from the urban area and the other 400 from the suburbs. The median scores on IIEF-5, sexual desire and ejaculation were 5, 2 and 4 in the urban males as compared with 13, 2 and 5 in the suburban men, with statistically significant differences between the two groups (P < 0.01). The IIEF-5 score was significantly correlated with age, diabetes, cardio-cerebrovascular diseases, drinking and administration of 5alpha-reductase inhibitor in both the urban and suburban groups (P < 0.01). CONCLUSION: The sexual function of the middle-aged and older males is better in the suburbs than in the urban area of Beijing. The main reasons might be the lower incidences of diabetes and cardio-cerebrovascular diseases, moderate drinking and less use of 5alpha-reductase inhibitor among the suburban men.
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