Table 2.
Randomized index participants with any presenting sexual contact, a newly HIV-seropositive presenting sexual contact, or an HIV-seronegative presenting sexual contact, comparing contract partner notification alone versus passive partner notification (N=1,747)
| cPN (N=541) vs. pPN (N=1,206) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Referring participant characteristic | Any presenting contact |
Newly HIV-diagnosed presenting contact |
HIV-negative presenting contact |
||||||
| cPN | pPN | PD (95% CI) | cPN | pPN | PD (95% CI) | cPN | pPN | PD (95% CI) | |
| N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | ||||
| Overall | 147 (27) | 188 (16) | 0.12 (0.08, 0.16) | 19 (4) | 36 (3) | 0.01 (-0.01, 0.02) | 68 (13) | 84 (7) | 0.06 (0.02, 0.09) |
| HIV diagnosis status | |||||||||
| New diagnosis | 81 (23) | 123 (14) | 0.09 (0.04, 0.14)* | 12 (3) | 30 (4) | 0.00 (-0.02, 0.02) | 41 (12) | 55 (6) | 0.05 (0.02, 0.09) |
| Previous diagnosis | 66 (34) | 62 (18) | 0.17 (0.09, 0.24)* | 7 (4) | 6 (2) | 0.01 (-0.10, 0.11) | 27 (14) | 29 (8) | 0.06 (0.00, 0.11) |
| Sex | |||||||||
| Female | 91 (27) | 90 (13) | 0.15 (0.09, 0.20)* | 13 (4) | 16 (2) | 0.02 (-0.01, 0.04) | 45 (13) | 46 (6) | 0.07 (0.03, 0.11) |
| Male | 56 (27) | 95 (20) | 0.08 (0.01, 0.15)* | 6 (3) | 20 (4) | −0.01 (-0.04, 0.02) | 23 (11) | 38 (8) | 0.03 (-0.02, 0.08) |
| Age | |||||||||
| 18–24 years | 33 (24) | 34 (11) | 0.13 (0.05, 0.21) | 3 (2) | 4 (1) | 0.01 (-0.02, 0.04) | 21 (15) | 17 (6) | 0.10 (0.03, 0.16)* |
| ≥25 years | 113 (28) | 151 (17) | 0.11 (0.06, 0.17) | 15 (4) | 32 (4) | 0.00 (-0.02, 0.02) | 47 (12) | 67 (7) | 0.04 (0.01, 0.08)* |
| Marital status † | |||||||||
| Not married | 26 (13) | 16 (4) | 0.08 (0.03, 0.13)* | 4 (2) | 4 (1) | 0.01 (-0.01, 0.03) | 18 (9) | 11 (3) | 0.06 (0.02, 0.10) |
| Married | 119 (36) | 166 (20) | 0.16 (0.10, 0.22)* | 15 (5) | 32 (4) | 0.01 (-0.02, 0.03) | 50 (15) | 71 (9) | 0.06 (0.02, 0.11) |
| >1 recent sex partner ‡ | |||||||||
| Yes | 24 (33) | 25 (17) | 0.16 (0.04, 0.29) | 1 (1) | 7 (5) | −0.03 (-0.08, 0.01)* | 16 (22) | 14 (10) | 0.13 (0.02, 0.23) |
| No | 121 (26) | 157 (15) | 0.11 (0.07, 0.16) | 18 (4) | 29 (3) | 0.01 (-0.01, 0.03)* | 52 (11) | 68 (7) | 0.05 (0.01, 0.08) |
Abbreviations: CI = confidence interval; cPN = contract partner notification; PD = prevalence differences; pPN = passive partner notification
P-value <0.15 for likelihood ratio tests from binomial models assessing whether each exposure-outcome relationship varied by referring participant characteristic.
Not married includes never married, separated, divorced, or widowed.
Recent = previous 4 weeks; Yes = ≥2 sexual partners; No = 0–1 sexual partners; eligibility criteria included having had any sexual activity within the previous 6 months.