Table 1 Baseline patient characteristics
From: Non-small cell lung cancer in ever-smokers vs never-smokers
Variable | Ever-smoker [n = 88] | Never-smoker [n = 67] | p value |
|---|---|---|---|
Smoking status, n (%) | – | ||
Current smoker | 15 (17) | ||
Prior smoker | 73 (83) | ||
Never smoker | 0 (0) | 67 (100) | |
Pack years of smoking, median (IQRa) | 35 (20, 60) | 0 (0, 0) | – |
Female sex, n (%) | 37 (42) | 45 (67) | 0.002 |
Age, mean ± SDa, years min–max | 69 ± 8 52–90 | 62 ± 13 22–87 | < 0.001 |
Race/ethnicity, n (%) | 0.67 | ||
African American | 1 (1) | 2 (3) | |
Latinx | 5 (6) | 6 (9) | |
White | 76 (86) | 56 (84) | |
Other | 6 (7) | 3 (4) | |
Body mass index, mean ± SD, kg/m2 | 26 ± 6 | 26 ± 6 | 0.73 |
Family history of lung cancer, n (%) | 11 (12) | 8 (12) | 0.94 |
History of chronic obstructive pulmonary disease (COPD), n (%) | 42 (48) | 1 (1) | < 0.001 |
History of interstitial lung disease (ILD), n (%) | 0 (0) | 1 (1) | 0.43 |
Type of ILD, n (%) | |||
Usual interstitial pneumonia (UIP), n (%) | 0 (0) | 1 (1) | 0.43 |
History of non-lung cancer, n (%) | 25 (37) | 33 (38) | 0.98 |
History of prior radiation therapy to the chest or neck, n (%) | 3 (3) | 3 (4) | > 0.99 |
Known history of asbestos exposure, n (%) | 3 (3) | 1 (1) | 0.63 |
History of type 2 diabetes mellitus (DM), n (%) | 19 (22) | 12 (18) | 0.57 |
History of chronic liver disease, n (%) | 3 (3) | 3 (4) | > 0.99 |
History of chronic kidney disease, n (%) | 6 (7) | 1 (1) | 0.14 |