Table 2.
Study characteristics according to opt-in testing, opt-out testing or risk-based testing approaches
| Opt-in (N = 87) |
Opt-out (N = 76) |
Risk-based (N = 19) |
p value | |
|---|---|---|---|---|
| Country income level | n (%) | n (%) | n (%) | |
| High | 52 (60) | 62 (82) | 15 (79) | 0.007 |
| Middle | 25 (29) | 11 (14) | 4 (21) | 0.083 |
| Low | 10 (11) | 3 (4) | 0 (0) | 0.104 |
| Settings | ||||
| Primary care/GP | 4 (5) | 6 (8) | 4 (21) | 0.050 |
| Pharmacy | 1 (1) | 0 (0) | 0 (0) | 1.000 |
| Hospital | 7 (8) | 12 (16) | 4 (21) | 0.131 |
| Emergency department | 29 (33) | 34 (45) | 7 (38) | 0.311 |
| Community | 23 (26) | 5 (6) | 2 (10) | 0.002 |
| Dental/outpatient clinic | 18 (20) | 12 (16) | 1 (5) | 0.281 |
| Prisons | 5 (7) | 7 (9) | 1 (5) | 0.769 |
| Populations | ||||
| ED patients | 30 (34) | 33 (44) | 6 (32) | 0.432 |
| Paediatrics | 1 (1) | 3 (4) | 2 (10) | 0.090 |
| Outpatients | 18 (20) | 19 (25) | 7 (38) | 0.309 |
| Hospital inpatients | 5 (6) | 10 (13) | 1 (5) | 0.218 |
| General public | 28 (32) | 4 (5) | 2 (10) | < 0.001 |
| Incarcerated persons | 5 (7) | 7 (9) | 1 (5) | 0.769 |
| Rapid HIV testing | ||||
| Yes | 57 (65) | 39 (52) | 9 (47) | 0.135 |
| No | 30 (35) | 37 (48) | 10 (53) | - |
Of 150 unique studies, some evaluated more than one approach and thus will appear more than once in the columns