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Table 6 Correlation between oxidative stress biomarkers and both pulmonary functions and sputum cells

From: Chronic obstructive pulmonary disease in non-smokers: role of oxidative stress

 

Malondialdehyde

Superoxide dismutase

r

P value

r

P value

FEV1

− 0.416

0.008*

0.031

0.849

pO2

0.052

0.752

− 0.175

0.279

Total cells in sputum

− 0.005

0.975

0.103

0.528

Neutrophils

0.218

0.177

0.174

0.282

Lymphocytes

− 0.227

0.158

− 0.125

0.442

Monocytes

− 0.200

0.217

0.035

0.830

  1. Pearson’s correlation
  2. *Significance level at P value < 0.05