Prevalence and risk factors associated with high-grade anal squamous intraepithelial lesions (HSIL)-AIN2 and HSIL-AIN3 in homosexual men
Dorothy A Machalek, Fengyi Jin, I Mary Poynten, Richard J Hillman, David J Templeton, Carmella Law, Jennifer M Roberts, Sepehr N Tabrizi, Suzanne M Garland, Annabelle Farnsworth, Christopher K Fairley, Andrew E Grulich
PAPILLOMAVIRUS RESEARCH | ELSEVIER SCIENCE BV | Published : 2016
BACKGROUND: Anal intraepithelial neoplasia grade 2 (AIN2) and AIN grade 3 (AIN3) are commonly grouped together as high grade squamous intraepithelial lesions (HSIL). We assessed risk factors for HSIL-AIN2 and HSIL-AIN3 in a cohort of homosexual men. METHODS: At the baseline visit in the Study for the Prevention of Anal Cancer (SPANC), all men completed a questionnaire and underwent anal swabbing for cytology and HPV genotyping, followed by high resolution anoscopy. RESULTS: Composite-HSIL prevalence was 47% and 32% among 220 HIV-positive and 396 HIV-negative men, respectively. HSIL-AIN3 (37.7% versus 24.7%; p<0.001), but not HSIL-AIN2 (9.5% versus 7.6%; p=0.395) was more common in HIV-positi..View full abstract
Awarded by National Health and Medical Research Council
Awarded by Cancer Council New South Wales Strategic Research Partnership Program Grant
This work was supported by the National Health and Medical Research Council Program Grant (Sexually transmitted infections: Causes, consequences and interventions Grant #568971); and a Cancer Council New South Wales Strategic Research Partnership Program Grant (Preventing morbidity and mortality from anal cancer Grant #13-11). Cytological testing materials were provided by Hologic (Australia) Pty Ltd. The Kirby Institute is affiliated with the Faculty of Medicine, University of New South Wales and funded by the Australian Government Department of Health and Ageing. The views expressed in this publication do not necessarily represent the position of the Australian Government.