Table 3. Association between SPARE-BAA and cognitive function.
Analysis type | Stroop test | RAVLT long delay recall | DSST | |||||||||
Coefficient (95% CI) | p | Adj.p1 | n | Coefficient (95% CI) | p | Adj.p1 | n | Coefficient (95% CI) | p | Adj.p1 | n | |
Cross-sectional analyses2 (Y25 SPARE-BAA vs. Y25 Cognition) |
0.043 (-0.054, 0.141) | 0.382 | 0.382 | 704 | -0.036 (-0.068,-0.005) | 0.024 | 0.037 | 704 | -0.229 (-0.378,-0.080) | 0.003 | 0.008 | 707 |
Cross-sectional analyses2 (Y30 SPARE- BAA vs. Y30 Cognition) |
0.283 (0.158,0.408) | <0.001 | <0.001 | 615 | -0.042 (-0.078,-0.007) | 0.021 | 0.021 | 620 | -0.448 (-0.609,-0.287) | <0.001 | <0.001 | 623 |
Prospective analyses2 (Y25 SPARE- BAA vs. Y30 Cognition) |
0.151 (0.022,0.279) | 0.022 | 0.033 | 630 | -0.031 (-0.067, 0.004) | 0.086 | 0.086 | 641 | -0.274 (-0.438,-0.111) | 0.001 | 0.003 | 644 |
Mixed-effects model3 | 0.144 (0.059,0.230) | 0.001 | 0.002 | 1319 | -0.038 (-0.064,-0.012) | 0.004 | 0.004 | 1324 | -0.266 (-0.383,-0.149) | 0.000 | <0.001 | 1330 |
Delta analysis (5-year change in SPARE-BAA vs. 5-year change in cognition) |
0.218 (-0.012, 0.448) | 0.064 | 0.193 | 466 | -0.028 (-0.096, 0.041) | 0.430 | 0.644 | 472 | -0.056 (-0.308, 0.196) | 0.663 | 0.663 | 472 |
1BH-FDR adjustment was applied to account for multiple testing for each aging marker across all the cognitive function tests.
2Multiple linear regression models adjusting for age, sex, race, study fields, and education. Beta coefficients indicate changes in cognitive function score by one year greater in SPARE-BAA.
3Mixed-effects model with random intercept incorporating SPARE-BAA at Y25 and Y30, and cognitive function at Y25 and Y30.