Clinical Information and Pulmonary Nodule Characteristics for Database Used in This Study
| Parameter | Malignant nodule | Benign nodule |
|---|---|---|
| Total number | 42 | 50 |
| Mean (±SD) age (y) | 64.7 ± 11.2 | 63.8 ± 11.4 |
| Sex | ||
| Male | 26 | 24 |
| Female | 16 | 26 |
| Smoking | 26 | 12 |
| Previous malignancy | 11 | 5 |
| Nodule size on CT (cm) | ||
| <1 | 9 | 29 |
| 1–2 | 22 | 14 |
| 2–3 | 11 | 7 |
| SUV on PET | ||
| <2.5 | 11 | 43 |
| ≥2.5 | 31 | 7 |