TABLE 4.
Summary of models compared for Semantic Access.
| Dependent variable: Semantic Access percentage |
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| Model 1 | Model 2 | Model 3 | |
| Age at baseline | −1.798*** (0.609) | −1.357** (0.629) | −1.335** (0.629) |
| Vocabulary-WAIS | 2.418*** (0.611) | 1.943*** (0.632) | 1.961*** (0.632) |
| Evaluation Time | 2.234*** (0.265) | 2.162*** (0.280) | |
| MCI-Stable | −3.594 (1.835) | −5.578** (2.504) | |
| MCI-Worsened | −15.690*** (2.623) | −11.971** (4.855) | |
| Evaluation Time × MCI-Stable | 1.065 (0.913) | ||
| Evaluation Time × MCI-Worsened | −2.199 (2.403) | ||
| Intercept | 91.063*** (0.584) | 87.996*** (0.826) | 88.129*** (0.843) |
| Observations | 641 | 641 | 641 |
| Log Likelihood | −2,273.151 | −2,221.715 | −2,217.955 |
| Akaike Inf. Crit. | 4,560.302 | 4,463.430 | 4,459.910 |
| Bayesian Inf. Crit. | 4,591.511 | 4,507.967 | 4,513.315 |
| Bayes Factor | – | 1.38479⋅1018 | 0.069 |
All models included random effects for intercepts and Age and Vocabulary at baseline as covariates. Model 1 is the null mixed model (i.e. intercepts and covariates only); Model 2 is the mixed model with main effects; and Model 3 is the mixed model with main effects and interactions. Coefficients and standard errors (in parentheses). ** p < 0.05, *** p < 0.01.