Table 4. Cognitive performance dependent on familial longevity (offspring versus partner status*).
Offspring† | Partners† | Model 1 | Model 2 | |||||
Cognitive performance tests | N = 250 | N = 250 | β | 95% CI | p | β | 95% CI | p |
15-PLT, correct pictures | ||||||||
trial 1 | 7.4 (0.11) | 7.4 (0.12) | −0.13 | −0.44, 0.18 | 0.40 | −0.28 | −0.63, 0.07 | 0.11 |
trial 2 | 10.4 (0.13) | 10.3 (0.14) | −0.23 | −0.56, 0.10 | 0.17 | −0.30 | −0.67, 0.07 | 0.11 |
trial 3 | 12.1 (0.12) | 11.9 (0.12) | −0.32 | −0.63, −0.01 | 0.042 | −0.47 | −0.80, −0.15 | 0.005 |
immediate recall | 29.9 (0.31) | 29.6 (0.33) | −0.69 | −1.48, 0.10 | 0.088 | −1.06 | −1.92, −0.19 | 0.016 |
delayed recall | 11.3 (0.14) | 11.1 (0.14) | −0.42 | −0.77, −0.07 | 0.020 | −0.58 | −0.98, −0.18 | 0.004 |
Stroop test, seconds | ||||||||
part 1 | 20.9 (0.38) | 19.7 (0.34) | −1.27 | −2.31, −0.23 | 0.017 | −0.91 | −2.13, 0.32 | 0.15 |
part 2 | 25.3 (0.33) | 24.4 (0.30) | −0.86 | −1.74, 0.02 | 0.057 | −0.75 | −1.77, 0.27 | 0.15 |
part 3 | 48.8 (0.86) | 50.0 (0.97) | 1.62 | −0.67, 3.91 | 0.17 | 2.02 | −0.56, 4.61 | 0.13 |
interference score | 23.5 (0.74) | 25.7 (0.84) | 2.52 | 0.50, 4.54 | 0.015 | 2.84 | 0.57, 5.10 | 0.014 |
combined interference score | 25.1 (0.92) | 27.5 (1.02) | 2.80 | 0.30, 5.30 | 0.028 | 3.12 | 0.21, 6.03 | 0.036 |
DSST‡, correct answers | 46.3 (0.71) | 46.2 (0.74) | −0.32 | −2.16, 1.52 | 0.73 | −0.82 | −2.86, 1.21 | 0.43 |
Offspring = 0, partner = 1.
Values are expressed as mean (standard error).
n = 223 for offspring and n = 223 for partners. Abbreviations: β, estimate; CI, confidence interval; 15-PLT, 15-Picture Learning Test; DSST, Digit Symbol Substitution Test. Model 1: adjusted for age, 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. Robust standard errors were used to account for familial relationships among the offspring.