Table 2.
Parameter Estimates (SE) From Growth Curve Models for Time-to-Dementia Metric, With Baseline Age and Education Centered at Sample Mean for Individuals With Dementia
| Personality trait | Extraversion | Neuroticism | ||
|---|---|---|---|---|
| Parameter | Unconditional linear | Conditional linear | Unconditional linear | Conditional linear |
| ß (SE) | ß (SE) | ß (SE) | ß (SE) | |
| Fixed effects | ||||
| Intercept | 4.616 (0.309)** | 5.666 (0.646)** | 3.246 (0.428)** | 1.970 (0.657)* |
| Female | −0.722 (0.712) | −0.011 (0.748) | ||
| CES-D1 | −0.061 (0.037) | 0.137 (0.023)** | ||
| Age | 0.113 (0.162) | −0.239 (0.152) | ||
| Education | 0.211 (0.365) | −0.404 (0.253) | ||
| Age × Education | −0.008 (0.148) | 0.016 (0.076) | ||
| Time | −0.081 (0.061) | −0.016 (0.102) | 0.235 (0.071)** | 0.233 (0.100)* |
| Female | −0.090 (0.133) | −0.040 (0.123) | ||
| Age | 0.024 (0.045) | −0.050 (0.031) | ||
| Education | −0.009 (0.876) | −0.054 (0.032) | ||
| Variance components and fit indices | ||||
| Intercept | 3.987 (1.616)* | 3.461 (1.704)* | 6.904 (2.181)* | 4.388 (1.745)* |
| Slope | 0.030 (0.064) | 0.012 (0.058) | 0.057 (0.050) | 0.034 (0.035) |
| Cov (IS) | 0.174 (0.283) | 0.134 (0.279) | 0.620 (0.331) | 0.381 (0.236) |
| Residual | 1.032 (0.282)** | 1.119 (0.202)** | 0.942 (0.147)** | 0.662 (0.168)** |
| AIC | 613.248 | 594.597 | 590.390 | 526.809 |
| BIC | 628.180 | 628.794 | 605.185 | 560.673 |
Notes. AIC = Akaike information criterion; BIC = Bayesian information criterion; CES-D1 = symptoms of depression at Time 1; Cov (IS) = covariance (intercept-slope).
*p < .05. **p ≤ .001.