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Table 2 Mortality rates for different BMI classification

From: A retrospective cohort study of body mass index and survival in HIV infected patients with and without TB co-infection

  BMI < 18.5 BMI 18.5–24.99 BMI 25–29.99 BMI ≥ 30 P-value**
  Deaths/person-years Mortality rate (95% CI) Deaths/person-years Mortality rate (95% CI) Deaths/person-years Mortality rate (95% CI) Deaths/person-years Mortality rate (95% CI)  
All 19/146.2 13.0 (7.8–20.3) 24/545.0 4.4 (2.8–6.6) 9/188.2 4.7 (2.2–9.1) 4/94.8 4.2 (1.1–10.8) 0.002
TB 11/80.8 13.6 (6.8–24.5) 7/240.6 2.9 (1.2–6.0) 5/60.7 8.2 (2.7–19.2) 1/19.2 5.2 (0.1–29.1) 0.007
No TB 8/65.4 12.2 (5.3–24.1) 17/304.4 5.6 (3.2–8.9) 4/127.5 3.1 (0.9–8.0) 3/75.7 4.0 (0.8–11.6) 0.076
P-value*   0.818   0.147   0.150   0.851  
  1. BMI Body Mass Index
  2. *P-value comparing TB and no TB group within each BMI stratum
  3. **P-value comparing BMI strata across each TB category