. 2022 Jan 29;11(1):559–579. doi: 10.1007/s40121-022-00589-w

Table 4.

Incidence rate of tuberculosis per 1000 person-years against time of follow-up in months following commencement of the study in those exposed to isoniazid preventive therapy (IPT) versus those unexposed

Variable	Unadjusted HR (95% CI)	p value
Incident TB in the first 6 months follow-up (N = 6803)
Exposed	N/A
Unexposed	N/A
Incident TB in the first 12 months follow-up (N = 6803)
Exposed	14.1 (6.55, 30.33)	< 0.001
Unexposed	14.1 (6.55, 30.33)	< 0.001
Incident TB in 13–24 months follow-up (n = 6759)
Exposed	2.34 (1.00, 5.47)	0.050
Unexposed	2.34 (1.00, 5.47)	0.050
Incident TB in > 24 months follow-up (n = 6737)
Exposed	3.31 (1.82, 5.94)	< 0.001