MTBI (n=106) TBI (n=21) Stroke (n=34) Controls (n=86) p-value
Digit symbol coding 60.2 ± 17.3 59.9 ± 13.7 58.7 ± 12.9 81.4 ± 12.8 >0.001
TMT A, sec 44.2 ± 22.3 43.8 ± 21.8 43.9 ± 16.2 28.8 ± 9.1 >0.001
TMT B, sec 93.2 ± 47.9 85.1 ± 27.3 97.8 ± 49.6 61.0 ± 17.1 >0.001
TMT C, sec 100.4 ± 61.8 94.8 ± 33.0 95.3 ± 39.2 61.5 ± 24.5 >0.001
TMT D, sec 155.0 ± 69.6 163.9 ± 69.2 163.6 ± 53.8 102.9 ± 36.9 >0.001
TMT A errors 0.03 ± 0.17 0.00 ± 0.00 0.26 ± 0.16 0.00 ± 0.00 0.370
TMT B errors 0.28 ± 0.71 0.05 ± 0.22 0.34 ± 0.75 0.14 ± 0.38 0.123
TMT C errors 0.58 ± 0.94 0.80 ± 1.06 0.46 ± 1.126 0.28 ± 0.61 0.028
TMT D errors 1.12 ± 1.33 1.35 ± 1.50 1.30 ± 1.31 0.66 ± 0.88 0.025
Digit span 14.1 ± 4.0 14.8 ± 3.4 14.1 ± 3.4 16.4 ± 3.5 >0.001
Digit span forward 8.4 ± 2.3 8.8 ± 1.9 8.4 ± 1.7 9.6 ± 2.1 >0.001
Digit span backwards 5.7 ± 2.1 6.0 ± 1.7 5.9 ± 2.2 6.9 ± 2.2 0.001
Table 3: Cognitive tests included in the study (mean and standard deviation) and the p-value from the comparisons between groups (Kruscal-Wallis)