Table 3. HIV incidence by self-reported GUD and HSV-2 status and study arm.
Intervention | Control | ||||
HSV-2 Status at Enrollment | HIV Cases/py | HIV Incidence/100 py | HIV Cases/py | HIV Incidence/100 py | IRR Intervention/Control (95% CI) |
All | 36/4,825.5 | 0.78 | 69/4,846.0 | 1.44 | 0.54 (0.35–0.78) |
GUD symptoms | 5/173 | 2.89 | 16/303.5 | 5.27 | 0.55 (0.20–1.50) |
No GUD | 31/4,652.5 | 0.70 | 53/4,542.5 | 1.18 | 0.57 (0.37–0.89) |
HSV-2 positive | |||||
All | 21/1,392 | 1.51 | 23/1,358.5 | 1.69 | 0.89 (0.49–1.60) |
GUD symptoms | 3/74 | 4.1 | 5/117.5 | 4.26 | 0.92 (0.15–4.90) |
No GUD | 18/1,318 | 1.37 | 18/1,241 | 1.45 | 0.94 (0.49–1.81) |
HSV-2 indeterminate | |||||
All | 3/501 | 0.60 | 14/519 | 2.70 | 0.22 (0.04–0.80) |
GUD symptoms | 1/25 | 4.00 | 3/44 | 6.82 | 0.59 (0.01–7.31) |
No GUD | 2/476 | 0.83 | 11/475 | 2.32 | 0.18 (0.02–0.83) |
HSV-2 seroconverters | |||||
All | 5/221 | 2.26 | 12/296.5 | 4.05 | 0.56 (0.19–1.57) |
GUD symptoms | 1/15.5 | 6.45 | 4/40.5 | 9.88 | 0.65 (0.01–6.60) |
No GUD | 4/205.5 | 1.95 | 8/256 | 3.13 | 0.62 (0.14–2.32) |
HSV-2 negative | |||||
All | 7/2,711.5 | 0.26 | 20/2,672 | 0.77 | 0.34 (0.15–0.81) |
GUD symptoms | 0/58.5 | 0 | 4/101.5 | 3.94 | 0.0 (0.0–2.63) |
No GUD | 7/2,653 | 0.26 | 16/2,570.5 | 0.64 | 0.42 (0.17–1.03) |
95% CI based on an exact test when cell size was <5 observations.