Table 2. Associations Between ABI and Cognitive Performance in the 1921 Cohort.
| Cognitive Variable | Model 1a | Model 2b | Model 3c | Model 4d | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| β | p | R2 Change | β | p | β | p | β | p | R2 Change | |
| a Adjusted for age and sex, n = 170. b Adjusted for age, sex, and age-11 IQ, n = 149. c Adjusted for age, sex, and age-11 IQ, persons with ABI > 1.40 excluded, n = 139. d Adjusted for age, sex, and age-11 IQ, persons with ABI > 1.40 or a history of cardiovascular or cerebrovascular disease excluded, n = 93. | ||||||||||
| * p < .05. ** p < .01. | ||||||||||
| Age-87 IQ | .07 | .38 | .005 | −.02 | .81 | .03 | .72 | .13 | .17 | .016 |
| g Factor | .16 | .04* | .025 | .07 | .37 | .17 | .04* | .23 | .02* | .053 |
| Raven’s Matrices | .11 | .16 | .012 | .02 | .84 | .09 | .28 | .15 | .12 | .022 |
| Logical Memory–total | .10 | .18 | .011 | .05 | .57 | .11 | .19 | .19 | .08 | .034 |
| Letter fluency | .09 | .24 | .008 | .04 | .65 | .09 | .27 | .16 | .11 | .026 |
| Letter-Number Sequencing | .22 | <.01** | .047 | .17 | .04* | .11 | .18 | .18 | .09 | .031 |
| Digit Symbol | .20 | .01* | .039 | .17 | .04* | .25 | <.01** | .29 | <.01** | .084 |
| Mean simple RT | −.16 | .04* | .027 | −.15 | .08 | −.17 | .05 | −.27 | .01* | .071 |
| Mean four-choice RT (correct responses) | −.05 | .55 | .002 | .00 | .97 | −.04 | .67 | −.07 | .55 | .004 |