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Modeling rate of change in white matter hyperintensities as a function of PCs and treatment
| Model Outcome: WMH Slope | Model Terms | LR χ2 test P value (df)* |
|---|---|---|
| Model 1: Additive model | PC1–5 | Global, P = 0.104 (5 df) |
| PC1 | Partial, P = 0.003 (1 df)^ | |
| PC2 | P = 0.953 (1 df) | |
| PC3 | P = 0.961 (1 df) | |
| PC4 | P = 0.634 (1 df) | |
| PC5 | P = 0.853 (1 df) | |
| Treatment | Overall, P = 0.006 (2 df) | |
| Model 2: Non-additive model | Treatment × PC1–5 Interaction | Global, P = 0.207 (10 df) |
Degrees of freedom, df
