Table 3 Interpretation of self-test results in the hands of lay users compared to health care worker
Directly assisted HIV self-testing | Unassisted HIV self-testing | |||||||
|---|---|---|---|---|---|---|---|---|
Health care worker results | Health care worker results | |||||||
Positive (n = 12) | Negative (n = 233) | Invalid (n = 18) | Positive (n = 6) | Negative (n = 216) | Invalid (n = 15) | |||
Participant results | Positive (n = 12) | 9 (75.0%) | 3 (1.3%) | 0 (0%) | Positive (n = 20) | 5 (83.3%) | 15 (6.9%) | 0 (0%) |
Negative (n = 232) | 3 (25.0%) | 224 (96.1%) | 5 (27.8%) | Negative (n = 195) | 0 (0%) | 190 (88.0%) | 5 (33.3%) | |
Invalid (n = 19) | 0 (0%) | 6 (2.6%) | 13 (72.2%) | Invalid (n = 22) | 1 (16.7%) | 11 (5.1%) | 10 (66.7%) | |
Estimate (% [95% CI]) | Estimate (% [95% CI]) | |||||||
Agreement | 93.5% [90.5 to 96.5] | 84.4% [80.0 to 88.8] | ||||||
Cohen’s κ coefficient | 0.69 [0.63 to 0.75] | 0.44 (0.38 to 0.50) | ||||||