Baseline positivity of anal cytology and biomarkers by histologic anal diagnosis.

P values correspond to a comparison of the proportion of subjects with no SIL or LSIL versus those with HSIL, who were identified by each biomarker.SIL, squamous intraepithelial lesion; LSIL, low-grade squamous intraepithelial lesion; HSIL, high-grade squamous intraepithelial lesion; HPV, human papillomavirus.LSIL group included MSM with anal intraepithelial neoplasia (AIN) 1 on histology. HSIL group included MSM with AIN 2 or AIN 3 on histology. No SIL group included MSM without LSIL or HSIL.