Table 4.
Standardized Risk Difference and Number Needed to Treat/Enroll by Subgroup for 1 Additional Person to Achieve/Maintain Viral Suppression in the 1-Year Period Following AIDS Drug Assistance Program–Funded Qualified Health Plan Enrollment
| Characteristic | Standardized Risk Difference, % (95% CI) | NNT (95% CI) |
|---|---|---|
| Overall | 5.0 (2.9–7.1) | 20 (14.1–34.5) |
| State | ||
| Nebraska | 2.2 (−5.7 to 11.1) | 46 (9.0–inf) |
| South Carolina | 6.8 (3.9–9.7) | 14.7 (10.3–25.6) |
| Virginia | 3.7 (3.2–7.0) | 27.0 (14.3–31.3) |
| Age | ||
| 18–24 years | −1.7 (−11.3 to 7.1) | inf (14.1–inf) |
| 25–34 years | 9.2 (4.2–14.2) | 10.9 (7.0–23.8) |
| 35–44 years | 8.9 (4.6–13.0) | 11.2 (7.7–21.7) |
| 45–54 years | 2.6 (−.9 to 6.0) | 38.5 (16.7–inf) |
| 55–64 years | 2.1 (−2.4 to 6.4) | 47.6 (15.6–inf) |
| Race/ethnicity | ||
| White | 5.1 (.9–9.0) | 19.6 (11.1–111.1) |
| Black | 5.3 (2.8–8.1) | 18.9 (12.3–35.7) |
| Hispanic | −2.8 (−9.8 to 4.2) | inf (23.8–inf) |
| Other | 18.7 (4.5–32.8) | 5.3 (3.0–22.2) |
| Gender | ||
| Male | 4.9 (2.5–7.3) | 20.4 (13.7–40.0) |
| Female | 5.3 (1.3–9.1) | 18.9 (11.0–76.9) |
| Income | ||
| <100% FPL | 8.5 (5.7–11.5) | 11.8 (8.7–17.5) |
| 101–138% FPL | −1.6 (−7.2 to 3.7) | inf (27.0–inf) |
| 139–250% FPL | 0.7 (−3.1 to 4.3) | 142.9 (23.3–inf) |
| >251% FPL | 1.9 (−4.2 to 7.6) | 52.6 (13.2–inf) |
| HIV/AIDS diagnosis | ||
| HIV diagnosis | 3.4 (.7–6.2) | 29.4 (16.1–142.9) |
| AIDS diagnosis | 6.8 (3.8–9.9) | 14.7 (10.1–26.3) |
| Rurality | ||
| Urban | 4.7 (2.4–7.0) | 21.3 (14.3–41.7) |
| Rural | 6.6 (1.9–11.2) | 15.2 (8.9–52.6) |
| HIV risk factor: MSM | ||
| MSM HIV risk factor | 4.6 (1.7–7.6) | 21.7 (13.2–58.8) |
| HIV risk factor other than MSM | 5.4 (2.5–8.3) | 18.5 (12.0–40.0) |
| HIV risk factor: IDU | ||
| IDU HIV risk factor | 3.6 (−2.7 to 11.4) | 27.8 (8.8–inf) |
| HIV risk factor other than IDU | 5.1 (2.9–7.3) | 19.6 (13.7–34.5) |
| HIV risk factor: heterosexual | ||
| Heterosexual HIV risk factor | 5.0 (1.6–9.0) | 20.0 (11.1–62.5) |
| HIV risk factor other than heterosexual | 5.0 (2.5–7.4) | 20.0 (13.5–40.0) |
| Baseline HIV viral load status | ||
| Detectable | 10.5 (4.8–16.2) | 9.5 (6.2–20.8) |
| Undetectable | 3.4 (1.1–5.5) | 29.4 (18.2–90.9) |
Abbreviations: CI, confidence interval; FPL, Federal Poverty Level; HIV, human immunodeficiency virus; IDU, injection drug use; inf, infinity; MSM, male-to-male sexual contact; NNT, number needed to treat.