Association between sexual factors and abnormal anal cytology among study participants.

<p>Abbreviation: ASCUS = atypical squamous cells of undetermined significance; ASC-H = atypical squamous cells but cannot exclude HSIL; ASIL = anal squamous intraepithelial lesions, include low-grade squamous intraepithelial lesion (LSIL) and high-grade squamous intraepithelial lesion (HSIL); HIV = human immunodeficiency virus; STD = sexually transmitted diseases.</p>*<p>Sum may not always add up to total because of missing data.</p>