(b).

	All	Colonized (n = 62)	Diseased (n = 12)	P value
Chronic lung disease
COPD	32 (43%)	26 (42%)	6 (50%)	0.606
Bronchiectasis	25 (33%)	22 (35%)	3 (25%)	0.635
Asthma	5 (6%)	4 (6.4%)	1 (8.3%)	0.892
Cystic fibrosis	1 (1.3%)	1 (1.6%)	0 (0%)	0.683
Old TB	13 (17%)	8 (13%)	5 (41%)	0.030
Use of CS
Inhaled CS	23 (32%)	20 (32%)	3 (25%)	0.528
Systemic CS	10 (14%)	10 (16%)	0 (0%)	0.140
Smoking habit
Current or ex-smokers	44 (59%)	37 (59%)	7 (58%)	0.221
Never being smokers	30 (41%)	25 (40%)	5 (42%)	0.223
Others
HIV	0	0	0	N/A
Autoimmune  disease	1 (1.3%)	1 (1.6%)	0 (0%)	0.683

Data are presented as mean ± standard deviation (SD) for numerical variables or as number (%) for categorical variables.

COPD: chronic obstructive pulmonary disease, HIV: human immunodeficiency virus, and CS: corticosteroid.