Table 2.
Inter-correlations among Key Study Variables at Baseline
| Variable | 1 | 2 | 3 | 4 | 5 | 6 | HRS M (SD) |
|---|---|---|---|---|---|---|---|
| 1. Age (cat.) | – | −.075** | −.158** | .055** | .087** | .099** | – |
| 2. Education (cat.) | −.097** | – | .375** | −.122** | −.006 | −.149** | – |
| 3. Income (cat.) | −.119** | .211** | – | −.062** | −.009 | −.173** | – |
| 4. Memory Self-Rating | .062** | −.126** | −.110** | – | .345** | .176** | 2.947 (0.983) |
| 5. Perceived Memory Decline (cat.) | .018 | −.007 | −.042* | .276** | – | .161** | – |
| 6. Depressive Symptoms | −.014 | −.117** | −.084** | .232** | .159** | – | 1.405 (1.878) |
|
NHATS M (SD) |
– | – | – | 2.455 (0.910) | – | 2.760 (1.212) |
Note. NHATs coefficients are shown below the diagonal; HRS coefficients are shown above the diagonal; means and standard deviations only shown for continuous variables. Cat. = categorical variable. Kendall Tau coefficients used for associations with categorical variables, Pearson used for continuous outcomes **p ≤ .001, *p ≤ .01