Table 3 Predictive values and likelihood ratios of self-reported undetectable VL in CHIWOS sub-populations (n = 336)
PPV (95% CI) | NPV (95% CI) | LR+ (95% CI) | LR− (95% CI) | |
|---|---|---|---|---|
Ethnicity | ||||
Indigenous | 92.6 (86.4–96.5) | 86.7 (69.3–96.2) | 3.8 (2.1–6.6) | 0.05 (0.02–0.12) |
Caucasian | 94.8 (89.1–98.1) | 70.6 (44.0–89.7) | 2.9 (1.5–5.5) | 0.07 (0.03–0.16) |
African/Caribbean/Black | 91.3 (72.0–98.9) | 100.0 (29.2–100.0) | 2.5 (0.8–7.3) | NA |
Other | 96.0 (79.6–99.9) | 0 (0–97.5) | 1.0 (0.9–1.0) | NA |
Education | ||||
<High school | 91.4 (82.3–96.8) | 73.7 (48.8–90.9) | 3.1 (1.6–6.1) | 0.10 (0.04–0.25) |
≥High school | 91.4 (82.3–96.8) | 84.4 (67.2–94.7) | 3.4 (2.1–5.6) | 0.03 (0.01–0.08) |
Illicit drug use in past 3 months | ||||
Yes | 90.4 (81.9–95.8) | 80.0 (61.4–92.3) | 3.7 (2.0–6.8) | 0.10 (0.04–0.22) |
No | 95.0 (91.0–97.6) | 80.1 (58.1–94.6) | 2.6 (1.6–4.3) | 0.03 (0.01–0.09) |