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Table 2 Comparison of patient characteristics based on total emphysema, local emphysema, COPD, and GOLD stage

From: PD-L1, FGFR1, PIK3CA, PTEN, and p16 expression in pulmonary emphysema and chronic obstructive pulmonary disease with resected lung squamous cell carcinoma

Factors none-mild moderate-severe P value No Local emphysema Local emphysema P value No COPD COPD P value GOLD1 GOLD2,3 P value
SEX
 Male 33 17 0.78 18 32 0.54 26 24 0.59 34 16 0.14
 Female 7 2   5 4   3 6   3 6  
Smoking
 Never 2 0 0.61 2 0 0.2 2 0 0.34 2 0 0.54
 Ever 38 19   21 36   27 30   35 22  
Stage
 I 27 11 0.63 16 22 0.84 21 17 0.62 28 10 0.17
 II 10 6   5 11   7 9   7 9  
 III 3 1   2 2   1 3   2 2  
recurrence 0 1   0 1   0 1   0 1