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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