Phenotypic, immunologic, and clinical characteristics of patients with nontuberculous mycobacterial lung disease in Korea

Table 7 Pulmonary function of 81 patients with NTM lung disease and 46 non-NTM BE patients*

Number of patients	NTM lung disease patients (N = 81)	NonNTM BE patients (N = 46)	P value
FVC, L	2.8 (2.3,3.4)	2.7 (2.2,3.2)	0.13
% pred.	94 (81,104)	87 (76,97)	0.02
FEV₁, L	2.1 (1.8,2.6)	1.8 (1.4,2.2.3)	0.001
% pred.	101 (85,112)	86 (67,99)	0.001
FEV₁/FVC%	78 (72,82)	73 (65,81)	0.01
Patterns of ventilation
Normal	52 (64.2%)	20 (43.5%)	0.03
Restrictive	16 (19.8%)	10 (21.7%)	0.82
Obstructive	11 (13.6%)	11 (23.9%)	0.15
Mixed	2 (2.5%)	5 (10.9%)	0.10

*The results of the pulmonary function test could not be performed because of bloody sputum or patients’ refusal in three NTM lung disease patients and one non-NTM-BE patient.

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