[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).


CONCLUSIONS
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.
Department of Urology, Beijing Friendship Hospital, Capital Medical Universty, Beijing 100050, China.
Jian
J
Song
Qiang
Q
Shao
Ye
Y
Tian
Yan-qun
YQ
Na
Shan
S
Chen
Yi
Y
Wang
Xiang-hua
XH
Zhang
Bao-fa
BF
Hong
Wen-xue
WX
Sun
Ying-zhi
YZ
Diao
D000368:Aged; D000369:Aged, 80 and over; D000375:Aging; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D007172:Erectile Dysfunction / Q000453:epidemiology*; D006801:Humans; D015994:Incidence; D059411:Lower Urinary Tract Symptoms; D008297:Male; D008875:Middle Aged; D011470:Prostatic Hyperplasia / Q000453:epidemiology; D011795:Surveys and Questionnaires