Table 4.
Bivariable and Multivariable Associations of Individual PrEP Usage and Various Outcomes of HIV-negative ARTnet Participants
| Unadjusted |
Adjusted for Age and Race/Ethnicity |
|||
|---|---|---|---|---|
| Outcome | IRR (95% CrI) | % of Posterior >1.00 | IRR (95% CrI) | % of Posterior >1.00 |
|
| ||||
| Total degreea | 1.73 (1.61, 1.86) | 100.00 | 1.70 (1.57, 1.83) | 100.00 |
| Main degree | 0.94 (0.82, 1.07) | 17.65 | 0.96 (0.84, 1.10) | 29.73 |
| Casual degree | 2.45 (2.24, 2.69) | 100.00 | 2.34 (2.14, 2.56) | 100.00 |
| Count of one-time partnersb | 4.62 (3.94, 5.40) | 100.00 | 4.62 (3.94, 5.44) | 100.00 |
| Always using condoms in one-time partnership(s) | 0.58 (0.51, 0.66) | 0.00 | 0.60 (0.53, 0.69) | 0.00 |
| Frequency of casual partnership anal sexb,c | 2.44 (1.65, 3.74) | 100.00 | 2.55 (1.70, 3.94) | 100.00 |
| Frequency of casual partnership condomless anal sexb,c | 3.35 (2.12, 5.42) | 100.00 | 3.39 (2.18, 5.47) | 100.00 |
IRR: incidence rate ratio; CrI: credible interval; PrEP: pre-exposure prophylaxis
a
Degree is the number of persistent male partners measured on the day of the survey completion. Total degree includes both main and casual persistent partners, main degree includes main partners only, and causal degree includes casual partners only.
b
Because of overdispersion, approximated using negative binomial distribution.
c
Frequency of anal sex occurring in ongoing, casual partnerships at time of survey completion per week.