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. Author manuscript; available in PMC: 2016 Nov 29.
Published in final edited form as: Curr Alzheimer Res. 2015;12(7):648–654. doi: 10.2174/1567205011666141107153634

Table 4.

Race-stratified results of multivariable linear regression models of mean diffusivity and white matter hyperintensities predicting minimental substitution test and digit symbol substitution test scores.

Dependent variable Independent variable Standardized coefficient, p--value (Regression Coefficient (Standard Error))
Whites Blacks

Digit symbol substitution Mean diffusivity −.277, p=.002 (−33.99 (10.79)) −.209, p=.037 (−23.09 (10.90))

White matter hyperintensities −.121, p=.2 (−3.00 (2.14)) −.211, p=.038 (−3.63 (1.73))

Minimental score Mean diffusivity −.2501, p=.029 (−12.00 (3.97)) −.1492, p=.080 (−9.93 (5.73))

White matter hyperintensities −.0013, p=.8 (−.008 (.76)) −.2534, p=.027 (−2.69 (.93))
1

Standardized regression coefficients using square root transformed minimental score:.186.

2

Standardized regression coefficients using square root transformed minimental score: .155.

3

Standardized regression coefficients using square root transformed minimental score: .024

4

Standardized regression coefficients using square root transformed minimental score: .198.

Models with DSST as outcome are adjusted for income, literacy, drinking, smoking;

Models with 3MS as outcome are adjusted for income, literacy, drinking.