Table 4. Multiple Linear Regression Analysis for CT/Clinical Parameters to Predict FEV1.
| CT/Clinical Parameters | Coefficient (P) |
|---|---|
| All patients | |
| EI | -0.81 (< 0.001) |
| Inspiratory MLD | -0.20 (0.004) |
| Pi10 | -6.25 (< 0.001) |
| BMI | 0.76 (< 0.001) |
| Intercept | -087.01 |
| GOLD I and II (Group 1) | |
| EI | -0.18 (0.007) |
| Pi10 | -3.14 (0.005) |
| BMI | 0.48 (0.03) |
| Intercept | 74.51 |
| GOLD III and IV (Group 2) | |
| EI | -0.25 (< 0.001) |
| Intercept | 52.06 |
Stepwise algorithm selected above parameters as predictors of FEV1 in all patients (R2 = 0.28, p < 0.001), Group 1 (R2 = 0.06, p = 0.001) and Group 2 (R2 = 0.25, p < 0.001)