Table 4: Cumulative percentage of the number of abnormal FA and MD scores across 38 ROIs.

FA MD
1.
PTS/mTBI
2.
PTS
3.
Controls
% Diff 1.
PTS/mTBI
2.
PTS
3.
Controls
% Diff
1 v 2 1 v 3 2 v 3 1 v 2 1 v 3 2 v 3
% % % % % % % % % % % %
24 or more 0 6.3 0 -6.3 0.0 6.3 0 0 0 0.0 0.0 0.0
~ - - - - - - - - - - - -
14 or more 0 6.3 0 -6.3 0.0 6.3 3.6 0 0 3.6 3.6 0.0
13 or more 0 6.3 0 -6.3 0.0 6.3 3.6 0 0 3.6 3.6 0.0
12 or more 0 6.3 0 -6.3 0.0 6.3 3.6 0 3.3 3.6 0.3 -3.3
11 or more 0 6.3 3.3 -6.3 -3.3 3.0 7.1 0 3.3 7.1 3.8 -3.3
10 or more 0 6.3 3.3 -6.3 -3.3 3.0 7.1 0 3.3 7.1 3.8 -3.3
9 or more 3.6 6.3 3.3 -2.7 0.3 3.0 7.1 6.3 3.3 0.8 3.8 3.0
8 or more 3.6 6.3 3.3 -2.7 0.3 3.0 10.7 12.5 3.3 -1.8 7.4 9.2
7 or more 7.1 6.3 3.3 0.8 3.8 3.0 10.7 12.5 3.3 -1.8 7.4 9.2
6 or more 14.3 6.3 3.3 8.0 11.0* 3.0 14.3 12.5 3.3 1.8 11.0 9.2
5 or more 17.9 6.3 3.3 11.6 14.6* 3.0 17.9 12.5 16.7 5.4 1.2 -4.2
4 or more 25.0 6.3 10.0 18.7 15.0 -3.7 25.0 18.8 20.0 6.2 5.0 -1.2
3 or more 28.6 18.8 23.3 9.8 5.3 -4.5 39.3 37.5 20.0 1.8 19.3 17.5
2 or more 50.0 25.0 33.3 25.0 16.7 -8.3 46.4 56.3 26.7 -9.9 19.7 29.6
1 or more 57.1 68.8 50.0 -11.7 7.1 18.8 57.1 68.8 50.0 -11.7 7.1 18.8
0 scores 100 100 100 0.0 0.0 0.0 100 100 100 0.0 0.0 0.0

Note: PTS/mTBI (n=28), PTS (n=16), DEC (n=30). Abnormal FA < 2SDs compared to the control group mean; Abnormal MD > 2SDs compared to the control group mean. FA=fractional anisotropy and MD=mean diffusivity. *Significant (χ2, p < .05) after removing the cumulative percentage in the control group (3.3%) which might reflect a potential outlier.