The models with the linear covariate TCM adjustment yielded similar significant effects and interactions (i.e., age and sex effects and their interactions with and without TCM) to the allometric models: The linear covariate model underestimated or overestimated effects in 2.35% (102/4340) of statistical tests and these differences occurred in regions near significance with small effect sizes ( Supplemental Figures File 3 and 4 , https://osf.io/s4qc5/ ).
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Neuroanatomical norms in the UK Biobank: The impact of allometric scaling, sex, and age.
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