Table 2.

Results of QuantiFERON-TB Gold In-Tube (QFT) among study populations by age and gender.

	Total	15–19 years	20–29 years	30–39 years	≥40 years	p
Total
Negative	3611 (81.66)	261 (95.26)	2111 (87.20)	825 (77.46)	414 (63.50)	<0.001
Positive	790 (17.87)	13 (4.74)	310 (12.75)	237 (22.25)	230 (35.28)
Indeterminate	21 (0.47)	0	10 (0.41)	3 (0.28)	8 (1.23)
Male
Negative	2158 (80.70)	132 (94.29)	1287 (86.49)	519 (77.12)	220 (58.98)	<0.001
Positive	509 (19.04)	8 (5.71)	198 (13.31)	154 (22.88)	149 (39.95)
Indeterminate	7 (0.26)	0	3 (0.20)	0	4 (1.07)
Female
Negative	1453 (83.12)	129 (96.27)	824 (87.38)	306 (79.06)	194 (69.53)	<0.001
Positive	281 (16.08)	5 (3.73)	112 (11.88)	83 (21.17)	81 (29.03)
Indeterminate	14 (0.80)	0	7 (0.74)	3 (0.77)	4 (1.43)