Table V.
Model fit indices for the full and final models on the different DTI metrics
| Model | χ2 (df) | CFI | RMSEA (90% CI) |
|---|---|---|---|
| Full model | |||
| FA | 82.70 (21)a | 0.75 | 0.15 (0.12–0.18) |
| ADC | 55.56 (21)a | 0.85 | 0.11 (0.08–0.15) |
| Axial diffusivity | 71.68 (21)a | 0.73 | 0.14 (0.10–0.17) |
| Radial diffusivity | 56.95 (21)a | 0.75 | 0.11 (0.08–0.15) |
| Without MABP | |||
| FA | 8.21 (6) | 0.98 | 0.05 (0.00–0.13) |
| ADC | 11.87 (6) | 0.97 | 0.09 (0.00–0.16) |
| Axial diffusivity | 16.17 (6)a | 0.92 | 0.11 (0.05–0.18) |
| Radial diffusivity | 8.92 (6) | 0.99 | 0.06 (0.00–0.14) |
| Reduced model | |||
| FA | 8.50 (8) | 0.99 | 0.02 (0.00–0.11) |
| ADC | 13.42 (8) | 0.97 | 0.07 (0.00–0.14) |
| Axial diffusivity | 17.32 (8)a | 0.93 | 0.09 (0.03–0.16) |
| Radial diffusivity | 9.67 (8) | 0.99 | 0.04 (0.00–0.12) |
Model fit indices for the different models from Structural Equation Modelling. FA, fractional anisotropy; ADC, apparent diffusion coefficient; CFI, comparative fit index; RMSEA, root mean‐square error of approximation; CI, confidence interval.
a
χ2/df > 2.