Table 4. Beta estimates and 95% confidence intervals for best fitting models* relative to their model-averaged parameter estimates.
| PACC4 | Executive Function | |||
|---|---|---|---|---|
| Model Term | MA beta (CI) | Best model beta (CI)* | MA CI | Best model beta (CI)* |
| APOE Risk | -0.008 (-0.11–0.08) | -0.007 (-1.06–0.09) | -0.012 (-0.13–0.10) | -1.41e-02 (-1.31e-01 - .10) |
| WRAT III Reading subtest | 0.046 (0.04–0.05) | 0.0457 (3.75e-02-0.05) | 0.028 (0.02–0.04) | 2.81e-02 (1.87e-02–0.04) |
| Age | -0.042 (-0.05- -0.03) | -0.042 (-5.08e-02 - -0.03) | -0.053 (-0.06- -0.05) | -5.21e-02 (-5.79e-02 - -0.05) |
| Sex | -0.347 (-1.36–0.76) | -0.401(-1.37e+00 - .52) | -0.548 (-1.21–0.14) | -5.64e-01 (-1.19e-02–0.04) |
| Age*Sex | -0.008 (-0.26–0.01) | -0.007 (9–2.22e-02 - .01) | 0 (-0.01–0.01) | -5.25e-05 (-9.91e-03–0.01) |
| Met Hours per Week (Physical Activity) | -0.001 (-0.04–0.02) | -- | -0.001 (-0.02–0.01) | -- |
| MIND (Diet) | 0.018 (-0.66–0.54) | -- | -0.252 (-1.04- -0.02) | -3.55e-01 (-6.53e-01 - -0.03) |
| FCAS (Cognitive Activity) | -0.306 (-0.92–0.25) | -0.397 (9–8.48e-01–0.064) | 0.056 (-0.19–0.79) | 1.15e-01 (-1.95e-01–0.44) |
| Physical Activity*age | 0 (0.0–0.0) | -- | 0 (0.0–0.0) | -- |
| MIND Diet*age | 0 (-0.01–0.01) | -- | 0.004 (0.00–0.02) | 5.18e-03 (7.28e-05–0.01) |
| Cognitive Activity*age | 0.006 (-0.002–0.02) | 0.007 (2.95e-05–0.01) | 0 (-0.01–0.01) | -2.17e-01 (-5.15–0.005) |
| Physical Activity*MIND Diet*age | 0 (-0.001–0.00) | -- | 0 (-0.00–0.00) | -- |
| Physical Activitys*Cognitive Activity* age | 0 (0.00–0.00) | -- | 0 (0.00–0.00) | -- |
| MIND Diet *Cognitive Activity*age | 0 (-0.01–0.003) | -- | -0.001 (-0.01–0.00) | -3.00e-03 (-7.72e-03-0.002) |
*"Best Model" presented only if LRT with M1 showed the model added significantly above covariates. PACC-4 best model = Model 4; Executive Function best model = Model 8.
Abbreviations: PACC-4 = Preclinical Alzheimer’s Cognitive Composite Score-4; MA = Model-averaged; CI = 95% Confidence Interval; MIND = Mediterranean-DASH Intervention for Neurodegenerative Delay (Morris et al., 2015); FCAS = Florida Cognitive Activities Scale (Schinka et al., 2004)