141 Cerebral blood flow, amyloid burden and cognition Table 2. Relationship between R1, BPND and cognition in composite region of interest Concurrent Longitudinal Model 1 Model 2 Model 3 Model 1 Model 2 Model 3 R1 BPND R1 BPND R1*time BPND*time R1*time BPND*time VAT-A -0.09 (0.05) -0.07 (0.05) -0.09 (0.05) -0.07 (0.05) 0.01 (0.01) -0.02 (0.01) 0.01 (0.01) -0.02 (0.01) RAVLT immediate 0.04 (0.59) -0.77 (0.58) 0.05 (0.59) -0.79 (0.59) 0.27 (0.13) -0.70 (0.12)* 0.29 (0.11)*† -0.70 (0.12)*† RAVLT delayed 0.01 (0.20) -0.41 (0.20) 0.00 (0.20) -0.40 (0.20) 0.09 (0.04) -0.24 (0.04)* 0.08 (0.03) -0.23 (0.04)* Animal fluency 0.01 (0.36) -0.41 (0.36) 0.04 (0.36) -0.41 (0.36) 0.04 (0.05) -0.22 (0.06)* 0.04 (0.05) -0.22 (0.06)* TMT-A 0.01 (0.02) -0.01 (0.02) 0.01 (0.02) -0.01 (0.02) 0.01 (0.00) -0.01 (0.00) 0.01 (0.00) -0.01 (0.00) TMT-B 0.00 (0.02) -0.03 (0.02) 0.00 (0.02) -0.03 (0.02) 0.00 (0.00) -0.01 (0.00) 0.00 (0.00) -0.01 (0.00) Stroop I 0.00 (0.01) -0.01 (0.01) 0.00 (0.01) -0.01 (0.01) 0.00 (0.00) -0.00 (0.00)* 0.00 (0.00) -0.00 (0.00)* 6
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