Table 2. Spirometric variables of patients treated for pulmonary tuberculosis (N = 378) who had a history of lung disease or smoking or who had no such history; 2014-2015.^a .

Variable	LDS+ group	LDS− group	p*
	(n = 174)	(n = 204)
IC, L	2.29 ± 0.82	2.40 ± 0.68	< 0.01
IC, % of predicted	78.8 ± 23.9	82.5 ± 16.3
Post-BD IC, L	2.44 ± 0.83	2.43 ± 0.60	0.04
VC, L	3.35 ± 1.05	3.37 ± 0.91	0.01
VC, % of predicted	83.9 ± 20.6	84.9 ± 1.5
Post-BD VC, L	3.50 ± 0.97	3.45 ± 0.93	< 0.01
FVC, L	3.36 ± 1.13	3.31 ± 0.86	0.01
FVC, % of predicted	82.9 ± 20.4	84.3 ± 15.1
Post-BD FVC, L	3.44 ± 1.11	3.34 ± 0.87	< 0.01
FEV1, L	2.39 ± 1.00	2.66 ± 0.74	0.01
FEV1, % of predicted	72.2 ± 24.2	82.2 ± 17.5
Post-BD FEV1, L	2.54 ± 1.03	2.74 ± 0.75	0.01
FEF25-75%, L/s	1.92 ± 1.28	2.69 ± 1.18	< 0.01
FEF25-75%, % of predicted	58.3 ± 35.3	80.5 ± 34.2
Post-BD FEF25-75%, L/s	2.21 ± 1.40	2.95 ± 1.22	< 0.01
FEV1/FVC, %	69.7 ± 14.2	80.4 ± 11.1	< 0.01
FEV1/FVC, % of predicted	86.0 ± 16.8	97.0 ± 12.5
FEF25-75%/FVC, %	54.8 ± 30.9	82.5 ± 35.2	< 0.01
FEF25-75%/FVC, % of predicted	67.8 ± 36.0	95.7 ± 39.8

LDS: history of lung disease or smoking; IC: inspiratory capacity; and BD: bronchodilator. ^aValues expressed as mean ± SD. *Chi-square test.