217 e-Letters

  • Why are anogenital warts diagnoses decreasing: Can we explain sex- and age-specific decreases?
    David Mesher

    The audit by Clarke et al of 106 patients provides a useful estimate of the percentage of anogenital warts among GUM clinic attenders that the patient had not noticed (in 2010), at 12.3%[1]. They suggest that failure to examine these patients may have accounted for a considerable proportion of the reduction in anogenital warts diagnoses in GUM seen in England between 2008 and 2012, of 8% among males and females of all age...

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  • Recreational Drugs used
    David M Stuart

    The use of recreational drugs used in sexual contexts by MSM (referred to in many developed countries as "ChemSex") is of increasing public health concern; it would be helpful if the abstract was ammended to include which recreational drugs were being used by the cohort in this study.

    Conflict of Interest:

    None declared

  • Human Rights and HIV Interventions in Chinese Labor Camps
    Joseph Amon

    Yap and colleagues1 suggest that China's labor camps for drug users present an opportunity to implement universal 'test and treat' programs. They contend that such a step would be consistent with 'humanitarian' principles endorsed by The Global Fund and the World Bank.

    Their recommendation is surprising and troubling. The paper cited to support this position (which we co-authored) is not in fact a call to scale...

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  • Alternative forms of penile foreskin cutting and HIV infection in Papua New Guinea
    Kathleen E Wirth

    I read with concern the manuscript by MacLaren DJ et al which states: "Alternative forms of penile foreskin cutting may be associated with reduced HIV infection risk in Papua New Guinea." Using data described in the manuscript, I was able to exactly replicate the authors' primary numerical finding. However, results of additional analyses not reported in the manuscript directly conflict with the key message regarding a po...

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  • Response to "Comparison of age-specific patterns of sexual behaviour and anal HPV prevalence in homosexual men with patterns in women"
    Maria Gabriella Dona'

    Dear Editor, with great interest we read the article by Poynten and collaborators (1), who investigated the possible relation between recent sexual behaviour and age-specific prevalence of anal HPV infection in men who have sex with men (MSM) and cervical HPV infection in women. The authors used the sexual behavioural data of previously published surveys conducted on these populations. Their conclusions regarding the assoc...

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  • Examining the authors' selected risk factors and the implications on a particular group of individuals
    Awahsaa N Akwo

    In the article, the authors' mention this study as being the first to be carried out on young sexually active women in post-secondary schools in the UK. They identified pelvic inflammatory disease (PID) in 1.6% of the individuals recruited for this study which was low because many individuals were lost during follow-up. However, they mentioned in the conclusions that medical reports were obtained from clinics for those los...

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  • Re:Alternative forms of penile foreskin cutting and HIV infection in Papua New Guinea
    David J MacLaren

    We thank the author for her interest in our paper and are happy that she was able to exactly reproduce our findings.

    As explicitly stated - ours was an ecological study, and thus used aggregate data only. Here we comment on the author's additional statistical analysis and interpretations:

    First, the author of the reply apparently did not test "individual results" which we assume means the single, diff...

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