[Association between lower urinary tract symptoms and erectile dysfunction in males aged 50 years and above: results from a multicenter community-based cross-sectional survey (BPC-BPH)].

OBJECTIVE: To survey the incidence of lower urinary tract symptoms (LUTS) and erectile dysfunction (ED) in males aged ≥ 50 years and explore the correlation between LUTS and ED. METHODS: A cross-sectional study was performed at Beijing communities in 1644 males aged over 50 years. The International Index of Erectile Function-5 (IIEF-5) and International Prostate Symptom Score (IPSS) were recorded. Pearson's χ(2) test and Spearman correlation coefficients were used to analyze the results of IPSS, LUTS and their correlations with ED. RESULTS: The mean age was 64.5 years old (range: 50-93), the mean value of IPSS(9.9 ± 8.2), the prevalence of mild, moderate and severe LUTS 49.2% (809/1644), 36.4% (599/1644) and 14.4% (236/1644) respectively. The mean value of IIEF was (9.4 ± 8.6), the total incidence of ED 90.5% (1487/1644) and the incidence of ED of mild, moderate and severe LUTS 85.7% (694/809), 93.7% (561/599) and 97.9% (231/236) respectively. The total IIEF-5 score was found significantly correlated with the total IPSS score (r = -0.335, P < 0.01), the obstructive symptoms (r = -0.276, P < 0.01)and irritative symptoms (r = -0.326, P < 0.01). The severity of LUTS was correlated with the severity of ED (r = 0.304, P < 0.01). Correlations also existed between age and total IPSS score(r = 0.388, P < 0.01), LUTS severity (r = 0.457, P < 0.01), total IIEF score (r = -0.533, P < 0.01) or ED severity (r = 0.529, P < 0.01). CONCLUSION: The incidence of LUTS or ED in aging males increases with age. The severity of ED is positively correlated with the severity of LUTS. Irritative and obstructive symptoms influence the occurrence of ED in aging males.

[Prevalence of overactive bladder in a community-based male aging population].

OBJECTIVE: To investigate the situation of overactive bladder (OAB) in a community-based male population. METHODS: Male participants over 50 years old were randomly selected from multiple communities in Beijing. The evaluation of lower urinary tract symptoms (LUTS) including the International Prostate Symptom Score (IPSS), quality of life (QOL) score, prostate volume and post voiding residue (PVR) by abdominal ultrasonography, and maximum flow rate (Qmax). Definition of OAB was determined as the score of item number 4 in IPSS ≥ 2. RESULTS: Of 1656 male participants enrolled, a total of 1639 men met our study criteria. The mean age was (64 ± 10) years. The prevalence of OAB was 26.3% (431/1639), and was significantly related to age, IPSS, QOL score, prostate volume, PVR and Qmax (P < 0.01). The prevalence of OAB was closely associated with aging (P < 0.01) and the degree of LUTS (P < 0.01). CONCLUSIONS: The prevalence of OAB increased with aging of the community-based male population. OAB would obviously affect the quality of life of the aging men.