[Correlation of lower urinary tract symptoms with erectile dysfunction in men aged 50 years and above].
OBJECTIVE
To investigate the incidence of lower urinary tract symptoms (LUTS) and erectile dysfunction (ED) in men aged > or = 50 years and to achieve the correlation between LUTS (obstructive symptoms and stimulant symptoms) and ED.


METHODS
We investigated 245 men aged > or = 50 years and with regular sex mates using International Prostate Symptom Score (IPSS) and International Index of Erectile Function-5 (IIEF-5), designed diagnostic interrogation and medical examination, and statistically analyzed the results of IPSS, IIEF-5, LUTS and their correlation with erectile function.


RESULTS
The incidence of ED was 81.9% (140/171) among the men with LUTS, 73.1% (38/52), 82.1% (46/56) and 88.9% (56/63) respectively in the 50-59, 60-69 and > or = 70 age groups, with significant differences in IPSS, IIEF-5 (P < 0.01) and the severity of ED (P < 0.01) among different age groups. ED incidence was found significantly correlated with the severity of LUTS (r = 0.52, P < 0.01), 71.3% (57/80), 89.6% (60/67) and 95.8% (23/24) respectively in the groups of mild, moderate and severe LUTS. The mean scores on obstructive and stimulant symptoms were (3.1 +/- 3.6) and (6.8 +/- 4.9), and their correlation coefficients with IIEF-5 were r = -0.41 (P < 0.01) and r = -0.59 (P < 0.01), respectively.


CONCLUSIONS
The incidence of ED is high in men with LUTS and positively correlated with the severity of LUTS. Stimulant symptoms have greater influence than obstructive symptoms on the sexual life of old and middle-aged males.
Wang
Yi
Y
Department of Urology, Shougang Hospital, Peking University, Beijing 100041, China. pkhwy@sina.com
Sun
Guo-feng
GF
He
Li-jun
LJ
Meng
Jun
J
Wu
Shi-liang
SL
Xiao
Yun-xiang
YX
Li
Xue-song
XS
Na
Yan-qun
YQ
D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D002681:China / Q000453:epidemiology; D007172:Erectile Dysfunction / Q000175:diagnosis / Q000453:epidemiology*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011795:Surveys and Questionnaires; D014524:Urethral Obstruction / Q000175:diagnosis / Q000453:epidemiology*