Table 4. Associations Between ABI and Cognitive Performance in the 1936 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 = 748. b Adjusted for age, sex, and age-11 IQ, n = 706. c Adjusted for age, sex, and age-11 IQ, persons with ABI > 1.40 excluded, n = 673. d Adjusted for age, sex, and age-11 IQ, persons with ABI > 1.40 or a history of cardiovascular or cerebrovascular disease excluded, n = 455. | ||||||||||
| * p < .05. ** p < .01. | ||||||||||
| g Factor | .01 | .72 | .000 | .05 | .12 | .04 | .21 | .07 | .07 | .005 |
| g Memory | −.05 | .20 | .002 | −.02 | .48 | −.05 | .15 | .00 | .95 | .000 |
| g Speed | .04 | .35 | .001 | .06 | .09 | .06 | .10 | .12 | <.01** | .014 |
| Matrix Reasoning | −.01 | .72 | .000 | .01 | .74 | .01 | .77 | .03 | .47 | .001 |
| Logical Memory–total | −.09 | .01* | .008 | −.07 | .04* | −.08 | .03* | −.04 | .33 | .002 |
| Letter fluency | .01 | .81 | .000 | .03 | .34 | .02 | .59 | .04 | .40 | .001 |
| Letter-Number Sequencing | −.01 | .70 | .000 | .02 | .62 | .01 | .87 | .04 | .38 | .001 |
| Digit Symbol | .06 | .11 | .003 | .09 | .01* | .06 | .07 | .10 | .02* | .009 |
| Mean simple RT | −.01 | .74 | .000 | −.03 | .47 | −.02 | .58 | −.08 | .11 | .006 |
| Mean four-choice RT (correct responses) | .01 | .81 | .000 | −.01 | .76 | −.00 | .99 | −.04 | .42 | .001 |