Table 2.
76 patients with malignant SPNs | 80 patients with benign SPNs | |
---|---|---|
Age, Median (SD) | 67.9 (7.6) | 65.4 (13.7) |
Sex | ||
Female | 34 (44.7%) | 30 (37.5%) |
Male | 42 (55.3%) | 50 (62.5%) |
Nodule size, Median (SD) | 2.5 (1.7) | 1.0 (1.4) |
Pack-years, Median (SD) | 35.5 (23.7) | 35.0 (26.7) |
Stages of NSCLC | ||
stage I | 24 (31.6%) | |
stage II | 30 (39.5%) | |
stage III-IV | 22 (28.9%) | |
Histological types of NSCLC | ||
AC | 40 (52.6%) | |
SCC | 36 (47.4%) | |
Diagnosis of benign SPNs | ||
Inflammatory lesion | 60 (75.0%) | |
Sarcoid | 8 (10.0%) | |
Granuloma | 7 (8.8%) | |
Fibrosis | 5 (6.2%) |
Abbreviations: SPNs, solitary pulmonary nodules; SD, standard deviation; NSCLC, non-small-cell lung cancer; AC, adenocarcinoma; SCC, squamous cell carcinoma.