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. Author manuscript; available in PMC: 2014 Mar 1.
Published in final edited form as: Am J Alzheimers Dis Other Demen. 2012 Dec 26;28(2):179–184. doi: 10.1177/1533317512470484

Fig. 2. Cumulative proportion of subjects whose diagnosis changed across time based on their VPC 2-min delay score.

Fig. 2

The colors delineate three ranges of scores: Red (<50% novelty preference); Orange (novelty preference between 50% and 67%); Green (>67% novelty preference). The left axis indicates percent of subjects whose diagnosis converted from aMCI to AD (n=13), or from CON to aMCI (n=4; at the time of writing, one of these four subjects has converted to AD). Log-rank p<0.001. AD indicates Alzheimer’s disease; aMCI, amnestic mild cognitive impairment; CON, control; VPC, Visual Paired Comparison.