Table 5.
Independent samples t-test between driving and non-driving groups at admission and repeat testing.
| Variables | Admission testing mean (SD) |
p-Values | Repeat testing mean (SD) |
p-values | ||
|---|---|---|---|---|---|---|
| Driving | Non-driving | Driving | Non-driving | |||
| DS | 47.74 (8.80) | 45.76 (8.46) | 0.20 | 49.36 (9.05) | 47.46 (9.48) | 0.25 |
| ART | 48.88 (9.06) | 45.56 (10.76) | 0.06 | 50.60 (9.19) | 49.10 (11.10) | 0.41 |
| LNS | 49.10 (9.38) | 44.81 (10.29) | 0.02 | 51.93 (9.04) | 46.41 (10.52) | 0.002* |
| DSC | 43.57 (9.29) | 35.21 (9.51) | 0.001* | 49.60 (9.16) | 39.17 (10.12) | 0.001* |
| SS | 44.19 (9.03) | 37.56 (9.95) | 0.001* | 49.18 (10.07) | 39.66 (9.84) | 0.001* |
| BD | 48.10 (8.16) | 42.59 (8.47) | 0.001* | 52.13 (8.18) | 47.11 (8.40) | 0.002* |
| MR | 56.09 (8.20) | 52.22 (11.59) | 0.03 | 60.05 (7.57) | 55.67 (8.09) | 0.005* |
| TMT | ||||||
| Part A | 41.50 (10.81) | 30.11 (14.77) | 0.001* | 43.93 (12.79) | 35.80 (15.32) | 0.001* |
| Part B | 40.66 (14.19) | 32.96 (15.53) | 0.005* | 46.61 (12.81) | 37.90 (15.34) | 0.001* |
*p-Value after adjusting for multiple comparisons (Bonferroni correction was set at 0.006); DS, digit span; ART, arithmetic; LNS, letter number sequencing; SS, symbol search; DSC, digit symbol coding; BD, block design; MR, matrix reasoning; and TMT, Trail Making Test.