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

Table 6 Radiographic characteristics and extent of lesions of 84 patients with NTM lung disease and 47 non-NTM BE patients

	NTM lung disease patients (N = 84)	Non-NTM BE patients (N = 47)	P value
Extent of bronchiectasis^†, median (IQR)	3 (2, 4)	4 (3, 9)	0.001
Type of bronchiectasis^‡
Tubular	46 (54.8%)	21 (44.7%)	0.28
Varicose	21 (25.0%)	11 (23.4%)	1.00
Cystic	17 (20.2%)	15 (31.9%)	0.14
Paranasal sinus
Normal	62 (73.8%)	33 (70.2%)	0.69
Mucoepithelial thickening	21 (25.0%)	14 (29.8%)	0.55
Air-fluid level or total haziness	0 (0%)	0 (0%)

Abbreviations: NTM nontuberculous mycobacteria, BE bronchiectasis, IQR interquartile range.
^†Extent of bronchiectasis was scored in each 6 lobe according to involved percentage of bronchiectatic bronchi. Extent scores range from 0 to 18; 0 if less than 25%, 1 if 25 ~ 49%, 2 if 50 ~ 74%, 3 if 75% or more.
^‡Classified based on main lesion.

ISSN: 1471-2334