Table 2.

Statistical analyses of DDC, α and ADC and their differentiation of LGG from HGG and discrimination among grade II, III and IV gliomas

Group	DDC (10-3 mm2/s)	ADC (10-3 mm2/s)	α
LGG	1.693 ± 0.630	1.433 ± 0.433	0.713 ± 0.060
HGG	0.832 ± 0.300†	0.869 ± 0.207†	0.667 ± 0.051†
Grade II	1.693 ± 0.630	1.433 ± 0.433	0.713 ± 0.060
Grade III	1.081 ± 0.324*	1.000 ± 0.242*	0.665 ± 0.044*
Grade IV	0.670 ± 0.123*,Δ	0.784 ± 0.126*	0.669 ± 0.056*
NAWM	0.810 ± 0.191	0.809 ± 0.137	0.729 ± 0.057

Notes: Data are presented as the means ± standard deviations.

^†Statistically significant difference between LGG and HGG;

NAWM, normal-appearing white matter;

^*Statistically significant difference between grade II and higher-grade (grade III and IV) gliomas;

^ΔStatistically significant difference between grade III and IV gliomas.