Table 3.

Chest CT features of pulmonary tuberculosis (TB) in patients with a positive culture and a negative culture for non-mycobacteria.

	Culture-positive for non-mycobacteria (n = 118)	Culture-negative for non-mycobacteria (n = 68)	OR	95% CI	P value
Emphysematous lesions	28 (24)	6 (9)	3.215	1.257–8.223	.015
Ground glass opacities	50 (42)	17 (25)	2.206	1.141–4.265	.019
Airspace consolidation	90 (76)	40 (59)	2.250	1.183–4.279	.013
Nodule	72 (61)	44 (65)	0.854	0.459–1.587	.617
Granuloma	103 (87)	62 (91)	0.665	0.245–1.802	.422
Air-bronchogram	81 (69)	34 (50)	2.189	1.185–4.046	.012
Cavity	59 (50)	32 (47)	1.125	0.619–2.045	.699
Interlobular septal thickening	36 (31)	10 (15)	2.546	1.171–5.539	.018
Bronchiectasis	69 (59)	26 (38)	2.275	1.235–4.191	.008
Pleural effusion	49 (42)	15 (22)	2.509	1.271–4954	.008
Pleural thickening	57 (48)	18 (27)	2.596	1.357–4.965	.004
Enlargement of mediastinum and/or hilar lymph node	67 (57)	25 (37)	2.260	1.224–4.171	.009
Lymph node calcification	42 (36)	14 (21)	2.132	1.060–4.285	.034
Number of lobe involvements	3 (1–4)	1 (1–3)	1.291	1.075–1.550	.006
Distributions
Bilateral lungs	64 (54)	22 (32)	2.478	1.328–4.625	.004
Right lung	106 (90)	51 (75)	2.944	1.309–6.625	.009
Left lung	76 (64)	39 (57)	1.346	0.731–2.478	.341
Upper lobes	96 (81)	52 (77)	1.343	0.649–2.778	.427
Middle lobes	65 (55)	26 (38)	1.981	1.078–3.642	.028
Lower lobes	75 (64)	34 (50)	1.744	0.952–3.195	.072