Table.

Demographic, clinical, radiologic and bacteriologic findings in TB patients at the moment of diagnosis (T0) and comparison of initial findings in cases with or without a new TB episode after 5–6 years’ follow-up^*

Characteristic	TB (n = 21) n (%)	Second episode† (n = 6) n (%)	Cure‡ (n = 14) n (%)	P value
Age, years, mean ± SEM	32.81 ± 2.57	28.2 ± 6.9	33.8 ± 2.4	NS§
Male	13 (61.9)	4 (66.7)	8 (57.1)	NS¶
Smoker	9 (42.9)	2 (33.3)	6 (42.9)	NS¶
Alcoholism	4 (19.0)	1 (16.7)	3 (21.4)	NS¶
Asthma/rhinitis	1 (4.8)	0	1 (7.1)	NS¶
Previous TB	3 (14.3)	3 (50.0)	0	0.0175¶
Duration of symptoms, weeks ± SEM	8.91 ± 1.14	10.5 ± 3.3	8.0 ± 0.9	NS§
Extension > 1 lobe#	11 (52.4)	4 (66.7)	7 (50.0)	NS¶
Cavitary TB**	8 (38.1)	4 (66.7)	4 (28.6)	NS¶
Negative AFB in sputum	5 (23.8)	1 (16.7)	3 (21.4)	NS¶
Negative sputum culture	3 (14.3)	1 (16.7)	1 (7.1)	NS¶

^*One TB case was lost to follow-up.

^†At least one new episode in 69 months of follow-up.

^‡No new TB episode in 69 months of follow-up.

^§Student’s t-test.

^¶Fisher’s exact test.

^#Number of pulmonary lobes affected by the disease.

^**Lung cavitation on chest X-ray.

TB = tuberculosis; SEM = standard error of mean; NS = non-significant; AFB = acid-fast bacilli.