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
Table 5: Characteristics of the Five Cognitive Measures in the PREDICT-HD Study.