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Table 1 Anthropometric characteristics, spirometry values of the subjects

From: Oxidative stress mediates the apoptosis and epigenetic modification of the Bcl-2 promoter via DNMT1 in a cigarette smoke-induced emphysema model

  Nonsmoker
n = 9
Non-COPD Smoker
n = 9
COPD smoker
n = 9
P value
Gender (M/n) 66.7% (6/9) 77.8% (7/9) 77.8% (7/9) 0.825 a
Age (years) 56.22 ± 10.99 57.44 ± 5.72 57.67 ± 6.50 0.92b
Smoking history (pack-year) 0 40.33 ± 13.61 39.56 ± 14.87 0.23c
FEV1/Pre (%) 85.11 ± 3.82 85.56 ± 4.22 71.78 ± 3.96 <0.01b
FEV1/FVC (%) 81.33 ± 5.57 81.11 ± 5.82 63.44 ± 3.50 <0.01b
  1. a P by Chi-square test, bP by one-way ANOVA test, and c P by Student’s t test