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. 2024 Jun 23;24:622. doi: 10.1186/s12879-024-09515-6

Table 3.

Pathogen distribution between AE-COPD patients with and without pneumonia

Pathogens Multiplex real-time PCR Bacterial culture Total
AE-COPD with pneumonia
(N = 92)
AE-COPD only
(N = 46)
AE-COPD with pneumonia
(N = 92)
AE-COPD only
(N = 46)
AE-COPD with pneumonia
(N = 92)
AE-COPD only
(N = 46)
Gram-negative bacteria
Klebsiella pneumoniae 49 (53.26) 24 (52.17) 10 (10.87) 6 (13.04) 51 (55.43) 26 (56.52)
Haemophilus influenzae 18 (19.57) 4 (8.70) 2 (2.17) 0 (0) 18 (19.57) 4 (8.70)
Moraxella catarrhalis 7 (7.61) 3 (6.52) 8 (8.70) 9 (19.57) 8 (8.70) 9 (19.57)
Acinetobacter baumannii 1 (1.09) 0 (0) 7 (7.60) 3 (6.52) 7 (7.61) 3 (6.52)
Pseudomonas aeruginosa 0 (0) 0 (0) 1 (1.09) 1 (2.17) 1 (1.09) 1 (2.17)
Escherichia coli ND ND 4 (4.35) 0 (0) 4 (4.35) 0 (0)
Stenotrophonas metophilia ND ND 2 (2.17) 1 (2.17) 2 (2.17) 1 (2.17)
Enterobacter aerogenes ND ND 1 (1.09) 1 (2.17) 1 (1.09) 1 (2.17)
Klebsiella oxytoca ND ND 1 (1.09) 0 (0) 1 (1.09) 0 (0)
Brevundimonas vesicularis ND ND 1 (1.09) 0 (0) 1 (1.09) 0 (0)
Acinetobacter ursingii ND ND 1 (1.09) 0 (0) 1 (1.09) 0 (0)
Achromobacter xylosoxidans ND ND 1 (1.09) 0 (0) 1 (1.09) 0 (0)
Elizabethkingia anophelis ND ND 0 (0) 1 (2.17) 0 (0) 1 (2.17)
Acinetobacter pittii ND ND 1 (1.09) 0 (0) 1 (1.09) 0 (0)
Acinetobacter nosocomialis ND ND 0 (0) 1 (2.17) 0 (0) 1 (2.17)
Acinetobacter junii ND ND 0 (0) 1 (2.17) 0 (0) 1 (2.17)
Klebsiella oxytoca ND ND 1 (1.09) 0 (0) 1 (1.09) 0 (0)
Brevundimonas vesicularis ND ND 1 (1.09) 0 (0) 1 (1.09) 0 (0)
Gram-positive bacteria
Streptococcus pneumoniae 16 (17.39) 7 (15.22) 2 (2.17) 0 (0) 16 (17.39) 7 (15.22)
Staphylococcus aureus 1 (1.09) 0 (0) 1 (1.09) 0 (0) 2 (2.17) 0 (0)
Streptococcus mitis ND ND 3 (3.26) 5 (10.87) 3 (3.26) 5 (10.87)
Streptococcus salivarius ND ND 1 (1.09) 1 (2.17) 1 (1.09) 1 (2.17)
Streptococcus constellatus ND ND 1 (1.09) 0 (0) 1 (1.09) 0 (0)
Atypical bacteria
Mycoplasma pneumoniae 3 (3.26) 1 (2.17) ND ND 3 (3.26) 1 (2.17)
Legionella pneumophila 3 (3.26) 1 (2.17) ND ND 3 (3.26) 1 (2.17)
Virus
Influenza A/B virus 5 (5.43) 3 (6.52) ND ND 5 (5.43) 3 (6.52)

The values are given as numbers (%)

p > 0.05 between these two groups

AE-COPD, acute exacerbation of chronic obstructive pulmonary disease; ND, not determined