Table 1.
Longitudinal multilevel regression models of changes in AARC gains.
| Model Estimates | AARC Gains (General) | AARC Gains Health and Functioning | AARC Gains Cognitive Functioning | AARC Gains Interpersonal Relations | AARC Gains Social-Cognitive/Social-Emotional Functioning | AARC Gains Lifestyle and Engagement |
|---|---|---|---|---|---|---|
| Fixed Regression Coefficients | ||||||
| Intercept [SE] | 2.961*** [0.053] | 2.928*** [0.069] | 2.960*** [0.060] | 2.733*** [0.063] | 3.062*** [0.069] | 3.259*** [0.080 |
| Age [SE] | 0.008** [0.003] | 0.010** [0.004] | 0.005 [0.003] | 0.005 [0.003] | −0.001 [0.004] | 0.026*** [0.004] |
| Age2 [SE] | −0.001*** [0.000] | |||||
| Gender [SE] | 0.158* [0.066] | 0.081 [0.087] | 0.070 [0.075] | 0.068 [0.079] | 0.414*** [0.086] | 0.166 [0.093] |
| Education [SE] | 0.025 [0.017] | 0.007 [0.022] | −0.001 [0.019] | 0.009 [0.020] | 0.064** [0.022] | 0.044 [0.023] |
| Self-Rated Health [SE] | 0.034 [0.039] | 0.027 [0.051] | 0.059 [0.045] | 0.059 [0.047] | 0.004 [0.051] | 0.036 [0.055] |
| Linear slope 2012–2020 [SE] | −0.005*** [0.001] | −0.005*** [0.001] | −0.007** [0.001] | −0.001 [0.001] | −0.004** [0.001] | −0.007*** [0.002] |
| Age*Slope [SE] | −0.000* [0.000] | −0.000 [0.000] | −0.000* [0.000] | −0.000 [0.000] | −0.000 [0.000} | −0.000* [0.000] |
| Gender*Slope [SE] | 0.001 [0.001] | −0.000 [0.002] | 0.001 [0.002] | 0.001 [0.002] | 0.000 [0.002] | 0.024 [0.002] |
| Education*Slope [SE] | −0.001* [0.000] | −0.000 [0.000] | −0.000 [0.000] | −0.000 [0.000] | −0.001** [0.000] | −0.001* [0.000] |
| Health*Slope [SE] | 0.002** [0.001] | 0.003** [0.001] | 0.003** [0.001] | 0.001 [0.001] | 0.002* [0.001] | 0.002 [0.001] |
| Random Variances | ||||||
| Variance Intercept [SE] | 0.262*** [0.030] | 0.373*** [0.053] | 0.319*** [0.030] | 0.368*** [0.042] | 0.476*** [0.048] | 0.465*** [0.059] |
| Variance Linear Slope [SE] | 0.000 [0.000] | 0.000 [0.000] | 0.000 [0.000] | 0.000 [0.000] | 0.000** [0.000] | 0.000 [0.000] |
| Cov. Intercept-Slope [SE] | 0.001 [0.000] | 0.000 [0.000] | n/a | −0.000 [0.001] | −0.001* [0.001] | 0.000 [0.000] |
| Residual Variance [SE] | 0.150*** [0.012] | 0.340*** [0.027] | 0.213*** [0.014] | 0.220*** [0.018] | 0.208*** [0.017] | 0.345*** [0.028] |
| BIC | 21,788.8 | 2,463.4 | 2,105.0 | 2,199.9 | 2,247.4 | 2,615.5 |
| R 2 | 0.117 | 0.086 | 0.167 | 0.094 | 0.209 | 0.143 |
Time unit is months (since 2012). R2 was computed according to Xu (83). AARC = Awareness of age-related change.
*p <0.05; **p <0.01; ***p <0.001.