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Table 5 RT-qPCR analysis of PSB and BALF samples obtained from patients in the HS, stable COPD and AECOPD groups

From: Quantitative analysis of pathogens in the lower respiratory tract of patients with chronic obstructive pulmonary disease

n (%) HS Stable COPD patients AECOPD patients
(n = 33) (n = 34) (n = 32)
PSB BALF PSB BALF PSB BALF
Staphylococcus aureus 3 (9.1) 2 (6.1) 16 (47.1) 17 (50.0) 22 (68.8) 20 (62.5)
Klebsiella pneumoniae 5 (15.2) 6 (18.2) 10 (29.4) 9 (26.5) 15 (46.9) 16 (50.0)
Streptococcus pneumoniae 10 (30.3) 8 (24.2) 20 (58.8) 18 (52.9) 14 (42.8) 17 (53.1)
Pseudomonos aeruginosa 2 (6.1) 2 (6.1) 15 (44.1) 17 (50.0) 20 (62.5) 23 (71.9)
Haemophilus influenzeae 5 (15.2) 6 (18.2) 18 (52.9) 20 (58.8) 25 (78.1) 24 (75.0)
Moraxella catarrhalis 4 (12.1) 4 (12.1) 22 (64.7) 20 (58.8) 16 (50.0) 15 (46.9)
  1. HS, Healthy subjects