Table 1.
Descriptive statistics for predictor variables at baseline
| Variables | N | Min | Median | Mean | Max | SD |
|---|---|---|---|---|---|---|
| Cognitive Reserve |
812 | −7.77 | 0.17 | 0.01 | 4.98 | 2.33 |
| Highest Occupation |
821 | 1.00 | 5.00 | 5.06 | 6.00 | 1.20 |
| Years of Education |
820 | 8.00 | 14.00 | 14.39 | 20.00 | 2.66 |
| ANART | 812 | 6.00 | 39.00 | 37.97 | 55.00 | 8.14 |
| CAP | 821 | 111.08 | 346.52 | 344.37 | 845.84 | 82.78 |
| Age | 821 | 18.11 | 41.10 | 41.28 | 83.73 | 10.35 |
| BDI Total | 812 | 0.00 | 4.00 | 7.25 | 48.00 | 8.24 |
ANART = American National Adult Reading Test; BDI = Beck Depression Inventory; CAP = CAG-Age Product; N = sample size
Note. Highest occupation and ANART were reverse scored, see text.