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. Author manuscript; available in PMC: 2016 Mar 1.
Published in final edited form as: J Neuroimaging. 2014 Jul 15;25(2):269–274. doi: 10.1111/jon.12138

Table 3. The ROC analysis between groups by NAA/Cr in PC.

NAA/Cr in PC
MCI/DLB# vs. MCI/AD MCI/DLB# vs. MCI stable MCI/AD# vs. MCI stable
AUROC 0.85 0.61 0.66
Specificity 89% 60% 50%
Sensitivity 80% 80% 80%
Cut-off value 1.50 1.50 1.49
P value 0.00* 0.61 0.01*
#

positive level in ROC curve;

*

significant different (p < 0.05)

AUROC = area under ROC curve; PC= voxel in Posterior cingulate