Objective:

The objective of the study was to compare lower urinary tract symptoms and prostatic anatomic characteristic with prostatic enlargement in obese patients.

Materials and methods:

A comparative and cross-sectional study was conducted from October 2018 to November 2018. Lower urinary tract symptoms were compared in patients with body mass index (BMI) 30-34.9 and BMI 35-39. To evaluate these symptoms, the International Prostatic Symptom Score (IPSS) was used on 537 patients. The variables were age, weight and size, BMI, prostatic volume measurement by ultrasound, prostate-specific antigen (PSA), and finasteride treatment. Descriptive statistic was used, Cronbach's alpha, Fisher's exact test, and Chi-square.

Results:

One hundred fulfilled inclusion criteria. Mean values were age 68.73 years, weight 84.98 kg, size 1.61 m, BMI 32.62, ultrasonographic prostatic size was 69.09 cm3, and PSA 1.94 ng/dl. The IPSS was severe in 3.6% (Group 1), 17.6% (Group 2); moderate 72% (Group 1), 70.5% (Group 2); and mild 33.3% (Group 1), 11.7% (Group 2), with significant differences between both groups (p = 0.05). Differences between values of prostatic volume and BMI did not show statistical significance (p ≥ 0.05).

Conclusion:

Statistical association between obesity and severe obesity and lower urinary tract symptoms is positive.