Table 4.

Proportion of bacterial and mycobacterial pathogens isolated from the sputum of COPD patients, including isolated pathogens in patients with and without frequent or severe exacerbation

Parameter	Total (n=72)	COPD with non-frequent exacerbation (N=43)	COPD with frequent exacerbation (n=29)	p-value
Bronchiectasis, n (%)	34 (47.2)	16 (37.2%)	18 (62.1%)	0.038
Bacterial colonization, n (%)	9 (12.5)	4 (9.3%)	5 (17.24%)	0.47
Pseudomonas aeruginosa, n (%)	3 (4.16)	2 (4.56)	1 (3.45)
Acinetobacter baumannii, n (%)	3 (4.16)	0	3 (10.34)
Klebsiella pneumoniae, n (%)	2 (2.78)	1 (2.32)	1 (3.45)
Streptococcus viridans, n (%)	1 (1.38)	0	1 (3.45)
Mycobacterial growth, n (%)	8 (11.11)	6 (13.95)	2 (6.9)	0.35

Notes: Data are presented as proportion (%). The statistical significance was determined by p-value <0.05.