Human papillomavirus types among women infected with HIV: a meta-analysis.

BACKGROUND HIV-positive women have a high prevalence of human papillomavirus (HPV) infection and are infected with a broader range of HPV types than HIV-negative women. It is not known to what extent these different types are associated with high-grade squamous intraepithelial lesions (HSIL) and cancer. METHODS Meta-analysis of HPV type-specific prevalence among HIV-positive women, stratified by geographical region and by cervical cytology: normal, atypical squamous cells of undetermined significance/low-grade squamous intraepithelial lesions (ASCUS/LSIL) or HSIL. RESULTS In 20 studies, 5578 HIV-positive women were identified, largely from North America but also Africa, Asia, Europe and South/Central America. For 3230 with no cytological abnormalities, prevalence was 36.3% for any HPV and 11.9% for multiple HPV types. The six most common high-risk HPV types were 16 (4.5%), 58 (3.6%), 18 (3.1%), 52 (2.8%), 31 (2.0%) and 33 (2.0%). HPV16 was also the most common type in 2053 HIV-positive women with ASCUS/LSIL and 295 with HSIL. Those with HSIL were significantly less likely to be infected with HPV16 (odds ratio, 0.6; 95% confidence interval, 0.4-0.7) than the general female population with HSIL. In contrast, HIV-positive women with HSIL were significantly more likely to be infected with HPV types 11, 18, 33, 51, 52, 53, 58 and 61, and with multiple HPV types. CONCLUSIONS The proportion of HIV-positive women with HPV16 rose with increasing severity of cervical lesions. Nevertheless, HPV16 remained underrepresented in HIV-positive women with HSIL, who showed a higher proportion of other HPV types and multiple types compared with the general female population with HSIL.