Hypogonadism(HG) is defined as low serum testosterone level among men. The threshold level of serum testosterone level and indications for testosterone replacement therapy is still not clear in the literature. The aim of this study is to detect the prevalence and associated factors of hypogonadism among men, who admitted to urology outpatient clinics for reasons other than sexual dysfunction. This is a multicentric study designed and conducted by Turkish Society of Urological Surgery, Andrology Study Group. Male patients between 50 and 75 years of age who were admitted to the urology outpatient clinic for complaints other than sexual dysfunction and whose total testosterone value was measured were included in the study. The correlation between testosterone value and symptom scores such as aging male symptoms (AMS) and international index of erectile function (IIEF) were also evaluated. A total of 774 patients were included in the study. Mean patient age was 60,0±6,1. The most common complaint was non-neurogenic male lower urinary tract symptoms (LUTS)(%52,3) Hypogonadism prevalence was 12,1% according to EAU criteria (< 8 nmol/L ∼231 ng/dl) Our study showed no statistically significant correlation between hypogonadism and AMS or IIEF scores. (Table 1) In our study, the body mass index(BMI) was found to be the most strongly correlated factor with serum testosterone levels regardless of patient had hypogonadism or not. (r= -0,168 & p< 0,001) Subgroup analysis revealed the prevalence of HG as 18% in men with BMI>=30kg/m2 . In this specific group, the symptom scores based on IIEF and ASM were similar with men with BMI< 30.
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