Table 1 Clinical characteristics of the study population
Characteristics | Benign PNs (n = 101) | Malignant PNs (n = 172) | P value |
|---|---|---|---|
Age, years | 59.60 ± 8.66 | 61.77 ± 11.02 | 0.107 |
Gender, n (%) | 0.211 | ||
Male | 42(41.58%) | 58 (33.72%) | |
Female | 59 (58.42%) | 114 (66.28%) | |
Smoking history, n (%) | 0.409 | ||
No | 87 (86.14%) | 142 (82.56%) | |
Yes | 14 (13.86%) | 30 (17.44%) | |
Extra-lung cancer history, n (%) | 0.001 | ||
No | 96 (95.05%) | 137 (79.65%) | |
Yes | 5 (4.95%) | 35 (20.35%) | |
Family cancer history, n (%) | 0.605 | ||
No | 92 (91.09%) | 153 (88.95%) | |
Yes | 9 (8.91%) | 19 (11.05%) | |
Nodule density, HU | -516.197 ± 232.52 | -601.78 ± 130.80 | 0.001 |
Air bronchogram, n (%) | 65 (64.35%) | 128 (74.41%) | 0.056 |
Nodule diameter, mm | 12.02 ± 5.08 | 20.73 ± 6.04 | < 0.001 |