Table 3 Incidence of tuberculosis among individuals enrolled in HIV care, treatment, and support program in Tanzania in 2011 to 2014
Variable | TB cases | 1000 person-years | TB incident rate/1000 person-years (95%CI) | Hazard ratio (95% CI) |
|---|---|---|---|---|
Overall | 22,071 | 1323.6 | 16.7 (16.4–16.9) | - |
Year of diagnosis | ||||
 2011 | 5366 | 316.2 | 17.0 (16.5–17.4) | 1 |
 2012 | 5254 | 317.9 | 16.5 (16.1–17.0) | 1.07 (1.02–1.14) |
 2013 | 6356 | 348.5 | 18.2 (17.8–18.7) | 1.15 (1.09–1.21) |
 2014 | 5095 | 342.3 | 14.9 (14.5–15.4) | 0.84 (0.80–0.89) |
Sex | ||||
 Male | 9306 | 407.7 | 22.8 (22.4–23.3) | 1 |
 Female | 12,764 | 916.9 | 13.9 (13.7–14.2) | 0.65 (0.64–0.67) |
ART status | ||||
 Non-ART | 7026 | 148.9 | 47.2 (46.1–48.3) | 1 |
 ART | 15,045 | 1152.7 | 12.8 (12.6–13.0) | 0.47 (0.46–0.49) |
HIV clinical stage | ||||
 1 | 844 | 180.0 | 4.7 (4.3–5.0) | 1 |
 2 | 2306 | 300.1 | 7.7 (7.4–8.0) | 2.31 (2.09–2.55) |
 3 | 13,233 | 604.8 | 21.9 (21.5–22.2) | 10.2 (9.31–11.09) |
 4 | 5214 | 216.7 | 24.1 (23.4–24.7) | 12.3 (11.2–12.45) |
Age group (years) | ||||
 < 15 | 2034 | 97.5 | 20.8 (20.0–21.8) | 1 |
 15–24 | 1210 | 70.4 | 17.2 (16.3–18.2) | 0.66 (0.63–0.78) |
 25–34 | 5514 | 323.1 | 16.9 (16.4–17.3) | 0.78 (0.75–0.81) |
 35–44 | 7554 | 458.9 | 16.5 (16.1–16.8) | 0.93 (0.90–0.97) |
 45–54 | 3990 | 253.9 | 15.7 (15.3–16.2) | 0.94 (0.90–0.98) |
 55+ | 1754 | 116.9 | 15.0 (14.3–15.7) | 0.87 (0.83–0.92) |