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

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.

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Sum may not always add up to total because of missing data.