[Prevalence of benign prostatic hyperplasia in Pingliang, Gansu: investigation and clinical analysis].

Objective: To investigate the prevalence of benign prostatic hyperplasia (BPH) in Pingliang City of Gansu Province.

Methods: We performed a cross-sectional randomized study of 836 men aged > or = 40 years from 26 communities of Pingliang, obtained their IPSS, measured the prostate volume by transabdominal ultrasonography, recorded the maximum flow (Qmax) by uroflowmetry, and processed the data by one-way analysis of variance.

Results: Totally 820 subjects meeting the study criteria were included in the investigation.

[Prevalence of sexual dysfunction in old and middle-aged males in Pingliang area].

Objective: To investigate the prevalence of hyposexuality, erectile dysfunction (ED) and defective ejaculation (DE) in the old and middle-aged males in Pingliang area.

Methods: This investigation included 1 539 men aged > or = 50 years from 6 urban districts and 20 villages in the suburbs of Pingliang City, Gansu Province. We recorded and analyzed their scores on IIEF-5 and Brief Male Sexual Function Inventory for Urology (O'Leary 1995).