Table 2. Cognitive performance dependent on calendar age in years.
| All subjects* | Model 1 | Model 2 | |||||
| Cognitive performance tests | N = 500 | β | 95% CI | p | β | 95% CI | p |
| 15-PLT, correct pictures | |||||||
| trial 1 | 7.4 (0.08) | −0.06 | −0.08, −0.04 | <0.001 | −0.07 | −0.10, −0.04 | <0.001 |
| trial 2 | 10.4 (0.09) | −0.09 | −0.12, −0.06 | <0.001 | −0.11 | −0.14, −0.08 | <0.001 |
| trial 3 | 12.0 (0.09) | −0.08 | −0.10, −0.06 | <0.001 | −0.08 | −0.11, −0.06 | <0.001 |
| immediate recall | 29.7 (0.23) | −0.23 | −0.29, −0.17 | <0.001 | −0.26 | −0.33, −0.19 | <0.001 |
| delayed recall | 11.2 (0.10) | −0.07 | −0.10, −0.05 | <0.001 | −0.08 | −0.11, −0.05 | <0.001 |
| Stroop test, seconds | |||||||
| part 1 | 20.3 (0.26) | 0.08 | 0.01, 0.16 | 0.036 | 0.08 | −0.01, 0.16 | 0.081 |
| part 2 | 24.8 (0.23) | 0.18 | 0.11, 0.24 | <0.001 | 0.18 | 0.10, 0.25 | <0.001 |
| part 3 | 49.4 (0.65) | 0.83 | 0.65, 1.00 | <0.001 | 0.89 | 0.69, 1.08 | <0.001 |
| interference score | 24.6 (0.56) | 0.65 | 0.50, 0.81 | <0.001 | 0.71 | 0.54, 0.89 | <0.001 |
| combined interference score | 26.3 (0.69) | 0.79 | 0.60, 0.98 | <0.001 | 0.85 | 0.64, 1.07 | <0.001 |
| DSST†, correct answers | 46.2 (0.51) | −0.71 | −0.84, −0.58 | <0.001 | −0.67 | −0.82, −0.52 | <0.001 |
*
Values are expressed as mean (standard error).
†
N = 446. Abbreviations: β, estimate; CI, confidence interval; 15-PLT, 15-Picture Learning Test; DSST, Digit Symbol Substitution Test. Model 1: adjusted for gender and years of education. Model 2: as model 1+ diabetes mellitus, cardiovascular diseases (myocardial infarction, stroke and hypertension), alcohol use, smoking, high-sensitivity C-reactive protein, interleukin-6 and apolipoprotein E genotype.