Table 2:

P values from the Kruskal-Wallis test of overall equality of all three grades for rCBV max, ssT1-, and fpT2*-derived Ktrans

rCBV maxssT1-Derived KtransfpT2*-Derived Ktrans
Kruskal-Wallis test.03*.006*.003*
Grade II vs III.11>.5>0.5
Grade II vs IV.019.017.005†
Grade III vs IV.19.009†.002†

  • * For significant Kruskal-Wallis test, P values from 3 Wilcoxon rank sum tests for 2 sample data were listed with Bonferroni adjustment for multiple comparisons.

  • † Difference was statistically significant after Bonferroni adjustment for multiple comparisons