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Table 8 Correlation analysis of bacterial burden in PSB samples and pulmonary function

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

 

Staphylococcus aureus

Klebsiella pneumoniae

Streptococcus pneumoniae

Pseudomonos aeruginosa

Haemophilus influenzeae

Moraxella catarrhalis

(log CFU/ml)

(log CFU/ml)

(log CFU/ml)

(log CFU/ml)

(log CFU/ml)

(log CFU/ml)

r

p

r

p

r

p

r

p

r

p

r

p

FEV1 % predicted

−0.674

<0.01

−0.865

<0.01

−0.543

<0.01

−0.664

<0.01

−0.849

<0.01

−0.813

<0.01

FVC % predicted

−0.597

<0.01

−0.756

<0.01

−0.419

<0.01

−0.586

<0.01

−0.728

<0.01

−0.675

<0.01

FEV1/FVC

−0.660

<0.01

−0.833

<0.01

−0.532

<0.01

−0.639

<0.01

−0.814

<0.01

−0.776

<0.01