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Comparison of CT quantitative parameters among the 3 groups (x ± s).
| Group | Mean nodule size (mm) | Mean size of solid nodules (mm) |
|---|---|---|
| Preinvasive lesion group (92 nodules) | 10.74 ± 4.72 | 3.50 ± 1.24 |
| Microinvasive | 11.85 ± 5.15 | 3.89 ± 1.72 |
| Adenocarcinoma group (69 nodules) | ||
| Invasive | 19.07±3.24*† | 8.75±1.47*† |
| Adenocarcinoma group (42 nodules) | ||
| F | 49.363 | 201.677 |
| P | <.001 | <.001 |
Compared with the preinvasive lesion group, P < .05.
Compared with the microinvasive adenocarcinoma group, P < .05.
