Demographic data, HIV-related data and STD prevalence
| Demographics, HIV infection | Mean (SD) or percentage (n/total) | Missing data (n) |
| Mean age (years) | 41.9 (±10.5) | – |
| Mean duration since HIV diagnosis (years) | 9.2 (±8.2) | – |
| CDC stage HIV infection | ||
| A | 54.5% (60/110) | – |
| B | 23.6% (26/110) | – |
| C | 21.8% (24/110) | – |
| 1 | 6.4% (7/110) | – |
| 2 | 59.1% (65/110) | – |
| 3 | 34.5% (38/110) | – |
| Mean CD4+ cell count (cells/µL) | 540 (±236) | 2* |
| Prescribed ART | 90.9% (100/110) | – |
| With HIV plasma viral load <40 copies/mL | 88.0% (88/100) | – |
| Rectal shedding of HIV-RNA | 13.5% (14/104) | 6† |
| When HIV plasma viral load was <40 copies/mL | 2.4% (2/83) | 5† |
| When HIV plasma viral load was ≥40 copies/mL | 57.1% (12/21) | 1† |
| STD prevalence | Percentage (n/total) | Missing data (n) |
| Detection CT and/or NG | 16.5 (17/103) | 7‡ |
| CT | 70.6 (12/17) | |
| NG | 52.9 (9/17) | |
| CT/NG coinfections | 23.5 (4/17) | |
| Current syphilis | 3.7 (4/109) | 1§ |
| Abnormal epithelia in anal cytology¶ | 26.6 (29/109) | 1** |
| Detection of HPV-associated lesions†† | 33.6 (36/107) | 3‡‡ |
| Condyloma/AIN I | 83.3 (30/36) | |
| AIN II/AIN III | 16.7 (6/36) |
*CD4 count missing.
†Rectal HIV-RNA amplification failed.
‡Nucleic acid amplification test for CT/NG failed.
§Serology missing.
¶Atypical cells of undetermined significance, low-grade intraepithelial lesion or high-grade intraepithelial lesion.
**Insufficient quality of sample.
††HPV-associated lesions were either of typical clinical appearance on (in?) high-resolution anoscopy or confirmed by biopsy.
‡‡Participants with suspected AIN refused biopsy.
AIN, anal intraepithelial neoplasia; ART, antiretroviral therapy; CDC, Centers of Disease Control and Prevention.