High prevalence and incidence of high-grade anal intraepithelial neoplasia among young Thai men who have sex with men with and without HIV
- 17 July 2013
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in AIDS
- Vol. 27 (11), 1753-1762
- https://doi.org/10.1097/qad.0b013e328360a509
Abstract
Background: Men who have sex with men (MSM) are at elevated risk of having anal cancer. However, the prevalence and incidence among MSM of high-grade anal intraepithelial neoplasia (HGAIN), the putative precursor of anal cancer, is understudied, particularly in Asians. Methods: A total of 123 HIV-positive and 123 HIV-negative MSM were enrolled at the Thai Red Cross AIDS Research Centre in Bangkok, Thailand, and followed for 12 months. Anal sample collection for human papillomavirus (HPV) genotyping and high-resolution anoscopy (HRA) with biopsies were performed at every visit. Results: Mean age at enrollment was 28.9 years. HIV-positive MSM were more commonly infected with high-risk HPV types in the anus than HIV-negative MSM (57.5 vs. 36.6%; P = 0.001). The prevalence of HGAIN was 18.9% in HIV-positive and 11.4% in HIV-negative MSM (P = 0.1). The incidence of HGAIN at 12 months was 29% in HIV-positive and 8% in HIV-negative MSM (P = 0.001). The hazard ratios for incident HGAIN in multivariate models were 5.16 [95% confidence interval (CI) 1.89–14.08, P < 0.001] in MSM with persistent HPV 16 and/or 18 infection and 2.62 (95% CI 1.04–6.61, P = 0.042) in HIV-positive MSM. Conclusions: Approximately one-third of HIV-positive MSM developed incident HGAIN within 12 months. Given the relative increased prevalence of HIV among MSM worldwide, local HGAIN data are needed to guide practitioners, policy makers, and communities in planning for strategies to screen for and treat HGAIN in this population.Keywords
This publication has 33 references indexed in Scilit:
- Trends in HIV Prevalence, Estimated HIV Incidence, and Risk Behavior Among Men Who Have Sex With Men in Bangkok, Thailand, 2003–2007JAIDS Journal of Acquired Immune Deficiency Syndromes, 2010
- Anal Intraepithelial Neoplasia in Heterosexual and Homosexual HIV?Positive Men with Access to Antiretroviral TherapyThe Journal of Infectious Diseases, 2004
- Lack of response of anal intra-epithelial neoplasia to highly active antiretroviral therapyAIDS, 2003
- Effect of HIV infection on the natural history of anal human papillomavirus infectionAIDS, 1998
- Virologic, Immunologic, and Clinical Parameters in the Incidence and Progression of Anal Squamous Intraepithelial Lesions in HIV-Positive and HIV-Negative Homosexual MenJAIDS Journal of Acquired Immune Deficiency Syndromes, 1998
- Anal Squamous Intraepithelial Lesions in HIV-Positive and HIV-Negative Homosexual and Bisexual MenJAIDS Journal of Acquired Immune Deficiency Syndromes, 1998
- High incidence of anal high-grade squamous intra-epithelial lesions among HIV-positive and HIV-negative homosexual and bisexual menAIDS, 1998
- Prospective study of high grade anal squamous intraepithelial neoplasia in a cohort of homosexual menAIDS, 1995
- Association of anal dysplasia and human papillomavirus with immunosuppression and HIV infection among homosexual menAIDS, 1993
- Detection of human papillomavirus DNA in anal intraepithelial neoplasia and anal cancer.1991