| 
      
        | Cognitive Variables | Sample Sizes (n1, n2) |  |  |  |  | DI* |  
        | At 40-42 Age Window: |  
        | SDMT | (31,231) | 56.48 | 52.03 | 9.59 | 12.45 | 0.192 |  
        | STROOP-C | (31,229) | 85.77 | 78.54 | 9.19 | 14.84 | 0.308 |  
        | STROOP-W | (31,230) | 104.29 | 98.88 | 15.42 | 19.05 | 0.153 |  
        | TRAILS-A | (20,153) | 20.45 | 26.29 | 6.39 | 10.92 | 0.343 |  
        | TRAILS-B | (20,151) | 48.05 | 66.81 | 19.33 | 36.06 | 0.370 |  
        | At 50-52 Age Window: |  
        | SDMT | (65,183) | 54.54 | 48.11 | 7.76 | 11.88 | 0.308 |  
        | STROOP-C | (65,183) | 82.11 | 71.90 | 10.96 | 13.02 | 0.336 |  
        | STROOP-W | (65,183) | 105.63 | 90.88 | 16.16 | 16.00 | 0.354 |  
        | TRAILS-A | (42,103) | 25.10 | 29.96 | 6.20 | 11.56 | 0.344 |  
        | TRAILS-B | (41,104) | 54.34 | 78.70 | 18.39 | 43.38 | 0.465 |  |