Sex Differences in Prevalence and Patient Behavior Regarding Lower Urinary Tract Symptoms Among Japanese Medical Checkup Examinees

To evaluate the prevalence of lower urinary tract symptoms (LUTS) and patient behavior regarding LUTS and to reveal sex differences among medical checkup examinees. This cross-sectional, community-based study included participants age 40 years and above in Japan who presented for a medical checkup. The study parameters included the International Prostate Symptom Score, International Consultation on Incontinence Questionnaire-Short Form, overactive bladder symptom score, and an original questionnaire regarding patients’ distress and behavior with respect to LUTS. Of 1934 residents who presented for a medical checkup, 1582 (81.8%) individuals agreed to participants. Finally, the data of 1256 participants (808 men, 448 women) were analyzed in this study. The overall prevalence of LUTS was similar in both sexes (men 46.8%, women 44.5%; P = .156). Men had a significantly higher prevalence of LUTS than women for voiding and postmicturition symptoms, and a similar prevalence of storage symptoms and overactive bladder. Women had a significantly higher prevalence of urinary incontinence. The rate of distress regarding LUTS and the need to consult a physician were similar in both sexes. However, the consultation rate for LUTS was significantly lower in women than in men (men 38.5%, women 5.3%; P < .001), and women were more likely to restrict their activities owing to LUTS than men (men 13.0%, women 43.6%; P < .001). Sufficient education regarding LUTS and providing appropriate medical facilities for consultation are warranted to encourage patients, particularly women, to treat their LUTS.