Table 1.
Descriptive Statistics for Predictor Variables
| Predictor | Value | Range | Correlation (r) with global cognition | Correlation (r) with cognitive resilience |
|---|---|---|---|---|
| Eudaimonic well-being | M = 5.34, SD = 0.57 | 3.39–6.78 | .21 | .24 |
| Hedonic well-being | M = 5.50, SD = 0.97 | 2.00–7.00 | .04 | .13 |
| Age at death (years) | M = 91.21, SD = 5.82 | 71–104 | −.21 | −.09 |
| Sexa (male) | n = 98, 28.2% | .05 | −.02 | |
| Early life SES (standardized composite) | M = 0.06, SD = 0.72 | −2.60 to 2.16 | .20 | .10 |
| Education (years) | M = 14.98, SD = 2.93 | 5–25 | .19 | .15 |
| Baseline cognitive activity | M = 3.17, SD = 0.50 | 1.84–4.41 | .07 | .13 |
| Neuroticism | M = 14.91, SD = 6.55 | 0–33 | −.14 | −.11 |
| Depressive symptoms | M = 1.20, SD = 1.69 | 0–10 | −.15 | −.17 |
| ApoE presentb | n = 67, 19.3% | −.15 | −.03 | |
| Medical comorbidities | M = 1.60, SD = 1.06 | 0–5 | .10 | .04 |
Note: Correlations with 95% confidence intervals that do not include zero are given in boldface. Associations with the last global cognition measurement before death are shown because this was the variable used in the primary operationalization of cognitive resilience. SES = socioeconomic status.
a
Sex was coded 0 for female and 1 for male. bApoliprotein E [ApoE] genotype was dichotomized by the presence of the e4 allele (0 = no, 1 = yes).