Table 1 Characteristics of lung cancer patients and cancer-free smokers of a training set
From: Small non-coding RNA biomarkers in sputum for lung cancer diagnosis
NSCLC cases (n = 46) | Controls (n = 55) | P-value | |
|---|---|---|---|
Age | 65.28 (SD 11.27) | 67.65 (SD 11.34) | 0.35 |
Sex | 0.38 | ||
Female | 18 | 22 | |
Male | 28 | 33 | |
Race | 0.08 | ||
White | 30 | 36 | |
African American | 16 | 19 | |
Pack-years | 44.79 (Range, 5–172) | 43.45 (Range, 5–109) | 0.38 |
FEV1/FVC | 0.45–0.79 | 0.43–0.80 | 0.10 |
Nodule size (cm) | 4.79 (Range, 95.25) | 1.29 (Range, 56.76) | <0.01 |
Stage, all are stage I | |||
Histological type | |||
Adenocarcinoma | 25 | ||
Squamous cell carcinoma | 21 |