Table 2.

Incidence of TB (per 100 person-years) before HAART and when on HAART in South African children

	Not treated with HAART (95%CI)	On HAART (95%CI)	Incidence rate ratio (95%CI)
Any TB episode
All children	16.4 (14.3–18.7)	6.3 (4.9–8.2)	0.4 (0.3–0.5)
Dual children*	21.1 (18.2–24.4)	6.4 (4.8–8.1)	0.3 (0.2–0.4)
Confirmed TB†
All children	3.1 (2.2–4.2)	2.5 (1.6–3.7)	0.8 (0.5–1.4)
Dual children*	3.8 (2.6–5.4)	2.7 (1.7–4.0)	0.7 (0.4–1.22)

^*Children who had follow-up time recorded both before and during HAART.

^†AFB smear and/or culture and/or biopsy-confirmed TB.

TB = tuberculosis; HAART = highly active antiretroviral therapy; CI = confi-denceinterval; AFB = acid-fast bacilli.