期刊
AIDS
卷 23, 期 16, 页码 2209-2213出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/QAD.0b013e328330eda8
关键词
foreskin surface area; HIV acquisition; HIV target cells; male circumcision
资金
- Fogarty AIDS International Training and Research Program (AITRP)
- National Institutes of Health [U1AI51171]
- Bill and Melinda Gates Foundation [22006.02]
Introduction: Male circumcision reduces HIV acquisition in men. We assessed whether foreskin surface area was associated with HIV acquisition prior to circumcision. Methods: In two randomized trials of male circumcision, the surface area of the foreskin was measured after surgery using standardized procedures. Nine hundred and sixty-five initially HIV-negative men were enrolled in a community cohort who subsequently enrolled in the male circumcision trials, provided 3920.8 person-years of observation prior to circumcision. We estimated HIV incidence per 100 person-years prior to circumcision, associated with foreskin surface area categorized into quartiles. Results: Mean foreskin surface area was significantly higher among men who acquired HIV (43.3 cm(2), standard error 2.1) compared with men who remained uninfected (36.8 cm(2), standard error 0.5, P=0.01). HIV incidence was 0.80/100 person-years (8/994.9 person-years) for men with foreskin surface areas in the lowest quartile (<= 26.3 cm(2)), 0.92/100 person-years (9/975.3 person-years) with foreskin areas in the second quartile (26.4-35.0 cm(2)), 0.90/100 person-years (8/888.5 person-years) with foreskin area in the third quartile (35.2-45.5 cm(2)) and 2.48/100 person-years (23/926.8 person-years) in men with foreskin surfaces areas in the highest quartile (>45.6 cm(2)). Compared with men with foreskin surface areas in the lowest quartile, the adjusted incidence rate ratio of HIV acquisition was 2.37 (95% confidence interval 1.05-5.31) in men with the largest quartile of foreskin surface area. Conclusion: The risk of male HIV acquisition is increased among men with larger foreskin surface areas. (C) 2009 Wolters Kluwer Health | Lippincott Williams & Wilkins
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