ABSTRACT
<p><b>OBJECTIVE</b>To investigate the situation of overactive bladder (OAB) in a community-based male population.</p><p><b>METHODS</b>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.</p><p><b>RESULTS</b>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).</p><p><b>CONCLUSIONS</b>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.</p>