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Table 4 The effect of IPT on TB incidence rate among patients by ART status

From: Effect of isoniazid preventive therapy on tuberculosis incidence and associated risk factors among HIV infected adults in Tanzania: a retrospective cohort study

  Characteristic Hazards ratio (95% CI) P-value
Ever on art (N = 56,245) Ever on IPT 0.6 (0.5–0.7) 0.001
Never on IPT Ref  
Never on art (N = 12,133) Ever on IPT 0.5 (0.2–1.7) 0.298
Never on IPT Ref