Table 2. Performance of QFT-G and TST in subgroups of HIV-TB patients.

Groups	QFT-G			TST
	% Pos (95%CI))	% Neg (95%CI)	% Indt (95%CI)	% Pos (95%CI)	% Neg (95%CI))
Overall (N = 105)	65 (56–74)	18 (11–25)	17 (10–24)	31 (22–40)	69 (60–78)
PTB (N = 66)	59 (47–71)	20 (10–30)	21 (11–31)	26 (15–37)	74 (63–85)
Sputum culture positive (N = 44)	66 (52–80)	11 (2–20)	23 (11–35)	25 (12–38)	75 (62–88)
Sputum culture negative (N = 22)	45 (24–66)	37 (17–57)	8 (2–34)	27 (8–46)	73 (54–92)
Sputum smear positive (N = 43)	68 (54–82)	9 (1–18)	23 (10–36)	26 (13–39)	74 (61–87)
Sputum Smear negative (N = 23)	44 (24–64)	39 (19–59)	17 (2–32)	26 (8–44)	74 (56–92)
EPTB (N = 39)	77 (64–90)	13 (2–24)	10 (1–19)	41 (25–56)	59 (44–74)

Pos – Positive.

Neg – Negative.

Indt – Indeterminate.

Sen - Sensitivity.

PTB – Pulmonary tuberculosis.

EPTB- Extra-pulmonary tuberculosis.