Current study | Parsimonious PanCan model [8] | Mayo model [12] | Veterans Administration model [13] | |
---|---|---|---|---|
Patient age (per increasing ten year increment) | 0.78 | Not included | 2.72 | 2.20 |
Patient gender, female vs male | Not significant | 1.91 | Not included | Not included |
Smoking history | 2.90 for current smokers | Not included | 2.21 for current smokers | 7.90 for current or ex-smokers |
Nodule spiculation | 5.57 | 2.54 | 2.83 | Not included |
Nodule diameter | 1.35 per increasing size increment | Non-linear relationship with cancer risk | 1.14 per mm increase in size | 1.10 per mm increase in size |
Upper lobe location | Not significant | 1.82 | 2.19 | Not included |