Chlamydia trachomatis infection is related to premature ejaculation in chronic prostatitis patients: results from a cross-sectional study.

INTRODUCTION: Chronic bacterial prostatitis (CBP) is reported to be a common finding in men with acquired premature ejaculation (PE). The impact of different pathogens on PE development in chronic prostatitis patients is, however, unknown.

AIM: To assess a possible link between CBP caused by Chlamydia trachomatis (Ct) and PE.

METHODS: A consecutive series of 317 patients with clinical and instrumental diagnosis of CBP due to Ct was enrolled (group A) and compared with data obtained from a control group of 639 patients with CBP caused by common uropathogen bacteria (group B). Prostatitis symptoms were investigated with the National Institutes of Health-Chronic Prostatitis Symptom Index (NIH-CPSI), while the ejaculatory status of patients was assessed using the PE Diagnostic Tool (PEDT).

MAIN OUTCOME MEASURES: All participants were asked to complete the NIH-CPSI, the International Index of Erectile Function-15 erectile function domain (IIEF-15-EFD), the PEDT, and the Short Form (SF)-36 questionnaires.

RESULTS: Patient groups A and B had comparable scores of NIH-CPSI (P = 0.07), IPSS (P = 0.32), and IIEF-15-EFD (P = 0.33) tests. PE was assessed in 118 patients in group A (37.2%) and in 73 subjects in group B (11.5%). The two groups are different in terms of PE prevalence (P < 0.0002). Compared with group B, group A showed significantly higher scores of the PEDT test (11.3 [±2.6] vs. 4.5 [±2.9], P < 0.0001) and lower scores of the SF-36 tool (96.5 [±1.1] vs. 99.7 [±1.3], P < 0.0001). In our multivariate model assessment, being positive for a Ct infection marker was independently associated with the PEDT score even after adjusting for age, smoking habit, body mass index, and education level (adjusted odds ratio = 3.21; 95% confidence interval: 2.02-4.27; P < 0.003).

CONCLUSIONS: Patients affected by CBP due to Ct infection reported higher prevalence of PE and lower quality of life when compared with patients affected by CBP caused by traditional uropathogenic bacteria.