Fig. 1

Diagnostic performance of the MARC. A The score of MARC in patients with ADD, MCI, and NDC. The MCI and ADD groups scored significantly worse than the NDC group (p < 0.05 and p < 0.01, respectively), and the ADD group scored significantly worse than the MCI group (p < 0.01). B ROC analysis in patients with ADD, MCI, and NDC. The AUC was 0.866 for NDC versus the MCI group, 0.989 for NDC versus the ADD group, and 0.889 for MCI versus the ADD group. The data was compared using the Kruskal–Wallis test, followed by the Bonferroni correction. * p < 0.05, ** p < 0.01. NDC, non-demented controls; ADD, Alzheimer’s disease dementia; MCI, mild cognitive impairment; MARC, mild cognitive impairment assessment tool for rapid screening using a computer; ROC, receiver operating characteristic; AUC, area under the receiver operating characteristic curve