Prevalence of newly diagnosed HIV infection in tested contacts by index patient characteristics, and by sexual contact type
| Number of contacts tested | Number testing HIV-positive (%, (95% CI)) | p Value (univariate analysis) | |
|---|---|---|---|
| All tested contacts | 1399 | 293 (20.9 (18.77 to 23.03)) | |
| Index patient characteristics | |||
| Sex | |||
| Male | 944 | 190 (20.1 (17.6 to 22.9)) | 0.21 |
| Female | 425 | 99 (23.3 (19.4 to 27.7)) | |
| Mode of HIV acquisition | |||
| Heterosexual | 694 | 163 (23.5 (20.4 to 26.9)) | 0.04 |
| Homosexual | 609 | 113 (18.6 (15.6 to 21.9)) | |
| Ethnicity | |||
| White | 784 | 153 (19.5 (16.8 to 22.5)) | 0.05 |
| Black African | 419 | 103 (24.6 (20.6 to 29.0)) | |
| Age | |||
| Under 40 | 893 | 185 (20.7 (18.1 to 23.6)) | 0.60 |
| 40 or over | 480 | 106 (22.1 (18.5 to 26.1)) | |
| Timing of infection | |||
| Recent (<6 months) | 188 | 35 (18.6 (13.5 to 25.1)) | 0.38 |
| Not recent | 657 | 144 (21.9 (18.9 to 25.3)) | |
| Contact characteristics | |||
| Sexual contact type | |||
| Regular | 890 | 236 (26.5 (23.7 to 29.6)) | <0.001 |
| Ex-regular | 176 | 24 (13.6 (9.1 to 19.8)) | |
| Casual known | 197 | 23 (11.7 (7.9 to 17.2)) | |