Meta-analysis of measures of sexual activity and prostate cancer

Leslie K. Dennis, Deborah V. Dawson

Research output: Contribution to journalArticlepeer-review

196 Scopus citations

Abstract

We conducted a meta-analysis of the association between prostate cancer and aspects of sexual activity. The data suggest an elevated relative risk (RR) of prostate cancer among men with a history of sexually transmitted infections. This was observed with both random- and fixed-effects models (RR = 1.4; 95% CI = 1.2-1.7; N = 17 studies; heterogeneity P = 0.14), especially for syphilis (RR = 2.3; 95% CI = 1.3-3.9; N = 6; heterogeneity P = 0.47). Risk of prostate cancer is also associated with increasing frequency of sexual activity (RR = 1.2 for an increase of three times per week; 95% CI = 1.1-1.3; N = 12). However, these studies are heterogeneous (P < 0.001). Increasing number of sexual partners is also associated with prostate cancer (RR = 1.2 for an increase of 20 partners; 95% CI = 1.1-1.3; N = 16; heterogeneity P = 0.11). The data do not support associations with multiple marriages, age at first intercourse, or age at first marriage. These results indicate an association between prostate cancer and sexually transmitted infections, suggesting that infections may represent one mechanism through which prostate cancer develops. The mechanism through which frequency of sexual activity may be related to prostate cancer is unclear.

Original languageEnglish (US)
Pages (from-to)72-79
Number of pages8
JournalEpidemiology
Volume13
Issue number1
DOIs
StatePublished - Jan 15 2002
Externally publishedYes

Keywords

  • First intercourse
  • Gonorrhea
  • Marriage
  • Meta-analysis
  • Multiple sexual partners
  • Prostatic neoplasms
  • Sexual activity
  • Sexually transmitted disease
  • Syphilis

ASJC Scopus subject areas

  • Epidemiology

Fingerprint Dive into the research topics of 'Meta-analysis of measures of sexual activity and prostate cancer'. Together they form a unique fingerprint.

Cite this