Table 2 Subjects’ Characteristics of Validation Study
Characteristics | Subjects with Malignant PNs (n = 57) | Subjects with Benign PNs (n = 43) |
|---|---|---|
Clinical | ||
Age (Years) | ||
Median Age | 62 | 54 |
Age Range | 38–78 | 27–72 |
Sex | ||
Male | 39 | 29 |
Female | 18 | 14 |
Smoking history | ||
Non-smoker | 25 | 30 |
Ex-smoker | 12 | 4 |
Current smoker | 20 | 9 |
Smoking pack years | ||
Mean Pack-years (Smokers only) | 40.77 | 21.64 |
Years quit (Smoker sonly) | 7.35 | 3.75 |
Histology subtype | ||
Adenocarcinoma | 32 | |
Squamous cell carcinoma | 14 | |
Small cell lung cancer | 2 | |
Other | 9 | |
Stage | ||
I | 18 | |
II | 20 | |
III-IV | 19 | |
Radiological | ||
Nodule size (mm) | 21.83 (SD 10.88) | 11.22 (SD 7.56) |
Nodule location | ||
Left lower lobe | 12 | 10 |
Left upper lobe | 12 | 10 |
Right lower lobe | 11 | 11 |
Right middle lobe | 5 | 4 |
Right upper lobe | 17 | 8 |
Nodule type (number) | ||
Nonsolid or ground-glass opacity | 17 | 13 |
Perifissural | 8 | 6 |
Part-solid | 9 | 7 |
Solid | 13 | 10 |
Spiculation | 10 | 7 |