H uman papillomaviruses (HPVs) are etiologically related to the development of cervical cancer [1] and the large majority of the squamous cell abnormalities that precede squamous cell carcinoma of the cervix [2]. More than 80 different HPV types exist; 35-40 types infect the anogenital area. The relative risk associations of 15 common anogenital types, in which types 6/11, 42, 43, and 44 were defined as "low risk," types 31, 33, 35, 51, 52, and 58 as "intermediate risk," and types 16, 18, 45, and 56 as "high risk," show that the presence of an oncogenic HPV type confers a higher rel-Abstract Objective. We evaluated the prevalence of genital human papillomavirus (HPV) types in correlation with cytomorphological findings in patients at different risk for cervical intraepithelial neoplasia living in northeast Italy.Methods. Exfoliated cervicovaginal cells from 943 women, who were divided into three groups, were analyzed by polymerase chain reaction.Results. Overall, HPV prevalence rates were 7%, 38%, and 52%, respectively. The single most frequent type was HPV 16 (18%), followed by types 6, 31, 53, 58, 61, and novel/unidentified (5-7%); other types had a frequency Ͻ 5%. Infection with multiple types was present in 12%. In HIV-infected women, HPV infection was correlated with lower CD4 level and higher viral load; HGSILs were correlated only with a lower CD4 count, and no correlations were found for LGSILs.Conclusions. HGSILs were associated with high-risk types, mainly HPV 16 (40%). LGSILs, instead, were associated with a broad spectrum of low-risk and high-risk types.