Table 5. Microbiologic and Histopathologic Results According to Site of TB Infection and Age.

Test according to TB site	Positive test, n (%)
	All children	<12 months	1–4 years	5–15 years	P value
Any Site	n = 103	n = 9	n = 39	n = 55
Smear	14/76 (18)	4/9 (44)	6/33 (18)	4/34 (12)	0.09
Culture	15/72* (21)	8/9 (89)	4/32 (13)	3/31 (10)	<0.001
Histopathology	30/34 (88)	2/4 (50)	15/15 (100)	13/15 (87)	0.03
Intrathoracic TB only	n = 44	n = 3	n = 14	n = 27
Smear	8/37 (22)	3/3 (100)	1/14 (7)	4/20 (20)	0.003
Culture	6/34 (18)	3/3 (100)	0/13 (0)	3/18 (17)	0.001
Histopathology	4/5 (80)	0/1 (0)	4/4 (100)	0	0.2
Extrathoracic TB only	n = 34	n = 0	n = 10	n = 24
Smear	1/17 (6)	0	1/6 (17)	0/11 (0)	0.35
Culture	0/16 (0)	0	0/6 (0)	0/10 (0)
Histopathology	15/17 (88)	0	5/5 (100)	10/12 (83)	1.0
Both Intra and Extrathoracic TB	n = 20	n = 5	n = 11	n = 4
Smear	5/17 (29)	1/5 (20)	4/9 (44)	0/3 (0)	0.49
Culture	9/17 (53)	5/5 (100)	4/9 (44)	0/3 (0)	0.02
Histopathology	11/12 (92)	2/3 (67)	6/6 (100)	3/3 (100)	0.5
Unknown Site	n = 5	n = 1	n = 4	n = 0
Smear	0/5	0/1 (0)	0/4 (0)	0
Culture	0/5	0/1 (0)	0/4 (0)	0
Histopathology	0	0	0	0

*Missing data on 4 specimen cultures.