Table 4.

Classification results of the LSVM classifier between MOr and MOp

Features from combined diffusion measures (FA&MD&RD)	Accuracy (%)	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Cluster 1	74.5***	83.3*	65.2*	71.4**	78.9**
Cluster 2	67.0*	76.6*	57.4	64.3	71.1
Cluster 3	64.9*	74.5*	55.3	62.5*	68.4

^* p < .01.

^** p < .005.

^*** p < .001, with 5,000 permutation tests

ADr = axial diffusivity; FAr = fractional anisotropy; MDr = mean diffusivity; MOr = migraine without aura, recovering; MOpr = migraine without aura, persisting; NPVr = negative predictive value; PPVr = positive predictive value; RDr = radial diffusivity.