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. Author manuscript; available in PMC: 2022 Dec 1.
Published in final edited form as: Neurobiol Aging. 2021 Jun 24;108:24–33. doi: 10.1016/j.neurobiolaging.2021.06.007

Table 2 A&B:

Multiple regression for the relationship between RMT and ADAS-Cog in AD participants in (A) discovery and (B) validation cohorts

A) Discovery Cohort
Models with covariates* df β RMT %βRMT Adj.R2model partial R2covar pmodel pRMT pcovar Corrected pmodel Corrected pRMT Corrected pcovar
RMT & Age 2,19 −0.73 −4.29 0.46 0.03 < 0.001 < 0.001 0.446 < 0.001 < 0.001 1.000
RMT & Gender 2,19 −0.67 4.29 0.51 0.11 < 0.001 < 0.001 0.140 < 0.001 < 0.001 0.700
RMT & Hand-dominance 2,18 −0.7 0 0.43 0.00 0.001 0.001 0.960 0.002 0.003 1.000
RMT & ApoE- ε4 2,9 −0.68 2.86 0.34 0.31 0.022 0.022 0.924 0.022 0.022 1.000
RMT & AD Medication Status 2,18 −0.69 1.43 0.48 0.06 < 0.001 < 0.001 0.301 < 0.001 < 0.001 1.000
RMT & SCD 2,19 −0.83 −18.57 0.58 0.25 < 0.001 < 0.001 0.022 < 0.001 < 0.001 0.154
RMT & left motor cortex CT 2,19 −0.62 11.43 0.54 0.17 < 0.001 0.001 0.060 < 0.001 0.003 0.360
B) Validation Cohort
RMT & Age 2,125 −0.35 0 0.13 0.02 < 0.001 < 0.001 0.095 < 0.001 < 0.001 0.190
RMT & Gender 2,126 −0.35 0 0.11 0.00 < 0.001 < 0.001 0.829 < 0.001 < 0.001 0.829
RMT & AD Medication Status 2,126 −0.36 −2.86 0.13 0.03 < 0.001 < 0.001 0.048 < 0.001 < 0.001 0.144
*

Covariables were used in separate models to check their individual influence on the relationship.

β > 10 is the tolerance threshold for influence.

Partial R2covar measures the additional covariance explained by each factor.