Variables All No.=87 Normal cytology No.=65 Abnormal cytology No.=22 p-value
Age AT enrollement years (min-max) 46.00 (23-78) 45.58 (23-78) 46.41 (27-64) 0.711
Etnicity Italian 65 (74.7%) 47 (72.3%) 18 (81.9%) 0.546
Other 22 (25.3%) 18 (27.7%) 4 (18.1%)
History OF STD (except HIV) Yes 63 (72.4%) 45 (69.2%) 18 (81.8%) 0.098
No 24 (27.6%) 20 (30.8%) 4 (18.2%)
Time after HIV diagnosis years mean (min-max) 7.19 (0-25) 7.86 (0-25) 5.54 (0-15) 0.077
Antiretroviral therapy Yes 80 (92%) 62 (95.4%) 18 (81.8%)  
No 7 (8%) 3 (4.6%) 4 (18.2%)  
Time after ARV beginning years (min-max) 6.23 (0-25) 6.83 (0-25) 4.38 (0-13) 0.055
HIV-RNA<50 copies/mL 54 42 12 1
NADIR CD4 cell count mean cell/μL (min-max) 279.51 (6-771) 287.68 (7-740) 255.41 (6-771) 0.535
LATEST CD4 cell count mean cell/μL (min-max) 911.5 (95-1388) 705.54 (95-1592) 560.86 (173-1388) 0.060
AIDS defining condition 19/87 (21.8%) 12/65 (18.4%) 7/22 (31.8%) 0.095
HR-HPV infection 67/83 47 (56%) 20 (24%) 0.21
Table 1: demographic and immune-virological characteristics of two groups: PAP-test negative and abnormal PAP-test (including all grade of cytological atypia).