Table 3.
Examples of PrEP Use Measures, by Race/Ethnicity among MSM, Chicago 2011–2019
| Measures Over Total Duration | ||||
|---|---|---|---|---|
| Black (n=812) | Latinx (n=1131) | White (n=2878) | Total (n=5247) | |
| Mean Total PrEP Time (SD)* | 18.0 (13.7) | 19.3 (14.1) | 20.6 (14.3) | 19.8 (14.2) |
| On PrEP at 6m* | 75% (605) | 77% (871) | 81% (2333) | 79% (4131) |
| Mean MRxR (SD)* | 86% (23) | 89% (21) | 90% (19) | 89% (20) |
| MRxR ≥85% on PrEP* | 68% (553) | 77% (866) | 79% (2265) | 77% (4016) |
| MRxR ≥57% on PrEP* | 86% (702) | 89% (1001) | 91% (2633) | 90% (4721) |
| Mean Quarterly Retention (SD)* | 70% (23) | 72% (23) | 70% (22) | 71% (23) |
| Measures at Specific Time Points | ||||
| Black (n=812) | Latinx (n=1131) | White (n=2878) | Total (n=5247) | |
| Early PDC ≥85%* | 40% (325) | 50% (568) | 57% (1651) | 53% (2758) |
| Late PDC ≥85%* | 23% (183) | 31% (345) | 36% (1039) | 32% (1681) |
| Early PDC ≥57%* | 45% (362) | 55% (626) | 62% (1783) | 57% (3008) |
| Late PDC ≥57%* | 26% (210) | 35% (401) | 41% (1185) | 37% (1939) |
| Mean Early PDC (SD)* | 75% (28) | 79% (27) | 84% (25) | 81% (26) |
| Mean Late PDC (SD)* | 62% (32) | 68% (32) | 74% (30) | 70% (31) |
| Early Quarterly Retention* | 51% (418) | 60% (678) | 62% (1793) | 59% (3114) |
| Late Quarterly Retention* | 24% (195) | 31% (352) | 32% (923) | 30% (1585) |
*
Differences between Black, Latinx & White MSM were significant (p<0.05) by chi square tests (for binary measures) and Wilcoxon rank sum tests (for continuous measures).