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. 2020 Oct 12;78(2):229–235. doi: 10.1001/jamaneurol.2020.3780

Figure 2. Preclinical Alzheimer Cognitive Composite.

Figure 2.

Boxplots of the Preclinical Alzheimer Cognitive Composite (PACC) are shown by apolipoprotein E (APOE) genotype (A). The horizontal lines inside the boxes indicate the median; the upper and lower bounds of the boxes indicate the third and first quartiles, respectively; whiskers indicate the most extreme point no more than 1.5 times the interquartile range; and circles indicate outliers. To the right of each boxplot is the mean and 95% CI. PACC scores are plotted against fluroine 18–labeled (18F)-florbetapir standardized uptake value ratios (SUVRs) for APOE ε4 carriers and noncarriers (B). The shaded areas indicate 95% CIs.