Table 3.
Means and ANOVA comparison of safe and unsafe drivers on cognitive measures
| Test | AD unsafe (N =11) | AD safe (N = 9) | PD unsafe (N = 7) | PD safe (N = 11) | Elderly controls (N = 21) | df, F |
|---|---|---|---|---|---|---|
| HVLT-total learning | 9.54 (4.18) | 11.22 (5.70) | 14.00 (5.13) | 20.18 (8.18) | 21.76 (5.08) | (4, 54) 11.81‡ |
| HVLT-delay | 1.45 (1.81) | 0.56 (1.67) | 3.14 (2.27) | 7.09 (3.33) | 6.91 (3.03) | (4, 54) 15.97‡ |
| HVLT-discrimination | 6.30 (2.31) | 3.11 (3.14) | 5.86 (2.67) | 8.45 (3.75) | 10.05 (2.20) | (4, 54) 11.48‡ |
| NAB-driving | 25.36 (6.95) | 27.78 (6.02) | 31.71 (9.59) | 37.55 (10.75) | 44.67 (9.42) | (4, 54) 11.35‡ |
| BQSS-presence | 11.82 (3.31) | 13.78 (3.70) | 11.43 (4.43) | 15.82 (2.09) | 15.50 (1.70) | (4, 53) 5.47‡ |
| BQSS-organization | 3.45 (1.03) | 5.00 (1.58) | 3.86 (0.90) | 5.45 (1.75) | 4.95 (1.31) | (4, 53) 4.02† |
| Trails A-time | 106.63 (56.09) | 42.11 (17.29) | 58.00 (22.15) | 53.18 (21.70) | 31.24 (7.85) | (4, 54) 13.50‡ |
| Trails B-time | 289.91 (24.42) | 184.55 (94.00) | 214.57 (89.14) | 142.55 (79.88) | 91.38 (58.34) | (4, 54) 16.41‡ |
| Mazes-planning time | 60.73 (27.12) | 45.78 (29.39) | 34.29 (20.86) | 30.92 (11.91) | 27.98 (10.48) | (4, 53) 5.93‡ |
| Mazes-draw time | 160.59 (100.54) | 98.96 (59.73) | 69.51 (43.74) | 57.14 (27.23) | 41.78 (22.66) | (4, 53) 9.44‡ |
| Finger tapping | 42.59 (4.28) | 41.94 (4.87) | 30.90 (5.05) | 34.40 (7.86) | 38.72 (8.47) | (4, 52) 3.41* |
*
p < .05,
†
p < .01,
‡
p < .001.