Fig. 3. Interactive effects of APOE ε4 status and Aβ positivity on cognitive measures in participants with MCI. The upper row displays interactive effects of APOE ε4 status and Aβ positivity on the ADAS-cog13 (A) and RAVLT_recog tests (B). The lower row displays four subgroups according to APOE ε4 and Aβ status on the ADAS-cog13 (A) and RAVLT_recog tests (B). ε4−, APOE ε4 non-carriers, blue circle; ε4+, APOE ε4 carriers, green triangle; Aβ−, beta-amyloid negative; Aβ+, beta-amyloid positive; ADAS-cog13, Alzheimer’s Disease Assessment Scale-cognitive subscale, consisting of 13 items; RAVLT_recog, Rey Auditory Verbal Learning Test, recognition score. *P < 0.01; †P < 0.001.
