Table 7. Predictive factors for invasive adenocarcinoma on logistic regression analysis in patients with clinical MIA only (part-solid GGO).
| Variable | HR | 95% CI | P value |
|---|---|---|---|
| Univariate analysis | |||
| Age | 0.974 | 0.932–1.018 | 0.241 |
| Sex (male) | 0.381 | 0.137–1.060 | 0.065 |
| Current of former smoker | 0.959 | 0.358–2.573 | 0.934 |
| CEA | 0.648 | 0.380–1.104 | 0.110 |
| SUVmax | 0.831 | 0.323–2.138 | 0.701 |
| FEV1 (%) | 1.006 | 0.978–1.035 | 0.683 |
| DLCO (%) | 1.009 | 0.983–1.035 | 0.499 |
| Previous cancer history | 0.737 | 0.291–1.865 | 0.519 |
| Presence of Synchronous GGO | 0.539 | 0.103–2.826 | 0.465 |
| Involved lobe | 0.983 | ||
| Right upper (reference) | 1 | ||
| Right middle | 0.741 | 0.187–2.939 | 0.670 |
| Right lower | 0.909 | 0.267–3.096 | 0.879 |
| Left upper | 1.071 | 0.356–3.224 | 0.902 |
| Left lower | 1.190 | 0.308–4.604 | 0.801 |
| Diameter of the consolidation (mm) | 1.324 | 0.821–2.135 | 0.250 |
| Diameter of the tumor (GGO) | 1.009 | 0.928–1.097 | 0.832 |
| Presence of pleural retraction | 0.496 | 0.215–1.145 | 0.100 |
HR, hazard ratio; CI, confidence interval; CEA, carcinoembryonic antigen; SUVmax, maximum standardized uptake value; FEV1, Forced expiratory volume in 1 second; DLCO, diffusing capacity for carbon monoxide; GGO, ground glass opacity.