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. 2023 Nov 6;80(12):1295–1306. doi: 10.1001/jamaneurol.2023.4038

Table 1. Mediation Resultsa.

b (95% CI)b P value
ADNI
Global 0.15 (0.05 to 0.28) .01c
Braak I 0.03 (−0.09 to 0.14) .68
Braak III 0.19 (0.07 to 0.32) <.001c
Braak IV 0.17 (0.06 to 0.30) .01c
Braak V 0.12 (0.01 to 0.24) .03c
Braak VI 0.09 (−0.02 to 0.21) .11c
Avid-A05
Global 0.33 (0.14 to 0.54) <.001c
Braak I −0.02 (−0.17 to 0.13) .78
Braak III 0.33 (0.14 to 0.54) <.001c
Braak IV 0.28 (0.11 to 0.48) <.001c
Braak V 0.34 (0.15 to 0.55) <.001c
Braak VI 0.27 (0.10 to 0.46) <.001c

Abbreviation: ADNI, Alzheimer’s Disease Neuroimaging Initiative.

a

The mediation models are controlled for age and sex. Additional mediation models correcting for diagnosis are shown in eTable 3 in Supplement 1.

b

Values are average causal mediation effect values derived from mediation analyses with apolipoprotein E ε4 risk as predictor, centiloid as mediator, and the annual tau standardized uptake value ratio rate of change in the respective Braak stage as the dependent variable.

c

Significant at false discovery rate–corrected P < .05.