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Table 1 Overall summary of the publicly available datasets

From: Novel biomarker genes which distinguish between smokers and chronic obstructive pulmonary disease patients with machine learning approach

Study name

Study samples

Age

Sex

Sample type

E-MTAB-1690

14 NS, 27 SMK, and 21 COPD

51.9 ± 8.69

53 male, 9 female

Respiratory tract

E-GEOD-20257

36 NS, 43 SMK, and 9 COPD

42.8 ± 10.9

61 male, 27 female

Small airway

E-GEOD-8545

18 NS, 18 SMK, and 18 COPD

45.7 ± 7.18

41 male, 13 female

Small airway

  1. NS non-smokers, SMK smokers, COPD COPD subjects