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. 2015 Jun 17;10(6):e0130396.
doi: 10.1371/journal.pone.0130396. eCollection 2015.

Male Circumcision and STI Acquisition in Britain: Evidence from a National Probability Sample Survey

Virginia Homfray  1 , Clare Tanton  1 , Robert F Miller  1 , Simon Beddows  2 , Nigel Field  1 , Pam Sonnenberg  1 , Kaye Wellings  3 , Kavita Panwar  2 , Anne M Johnson  1 , Catherine H Mercer  1
Affiliations

Male Circumcision and STI Acquisition in Britain: Evidence from a National Probability Sample Survey

Virginia Homfray et al. PLoS One. .

Abstract

Background: It is well-established that male circumcision reduces acquisition of HIV, herpes simplex virus 2, chancroid, and syphilis. However, the effect on the acquisition of non-ulcerative sexually transmitted infections (STIs) remains unclear. We examined the relationship between circumcision and biological measures of three STIs: human papillomavirus (HPV), Chlamydia trachomatis and Mycoplasma genitalium.

Methods: A probability sample survey of 15,162 men and women aged 16-74 years (including 4,060 men aged 16-44 years) was carried out in Britain between 2010 and 2012. Participants completed a computer-assisted personal interview, including a computer-assisted self-interview, which asked about experience of STI diagnoses, and circumcision. Additionally, 1,850 urine samples from sexually-experienced men aged 16-44 years were collected and tested for STIs. Multivariable logistic regression was used to calculate adjusted odds ratios (AOR) to quantify associations between circumcision and i) self-reporting any STI diagnosis and ii) presence of STIs in urine, in men aged 16-44 years, adjusting for key socio-demographic and sexual behavioural factors.

Results: The prevalence of circumcision in sexually-experienced men aged 16-44 years was 17.4% (95%CI 16.0-19.0). There was no association between circumcision and reporting any previous STI diagnoses, and specifically previous chlamydia or genital warts. However, circumcised men were less likely to have any HPV type (AOR 0.26, 95% confidence interval (CI) 0.13-0.50) including high-risk HPV types (HPV-16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59 and/or 68) (AOR 0.14, 95% CI 0.05-0.40) detected in urine.

Conclusions: Circumcised men had reduced odds of HPV detection in urine. These findings have implications for improving the precision of models of STI transmission in populations with different circumcision prevalence and in designing interventions to reduce STI acquisition.

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Conflict of interest statement

Competing Interests: The authors have read the journal's policy and the authors of this manuscript have the following competing interests: AMJ has been a Governor of the Wellcome Trust since 2011. The other authors declare that they have no conflicts of interest.

References

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