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. Author manuscript; available in PMC: 2019 May 1.
Published in final edited form as: J Clin Exp Neuropsychol. 2017 Aug 2;40(4):411–422. doi: 10.1080/13803395.2017.1356912

Table 4.

Simultaneous Multiple Linear Regression Model: Prediction of Executive Functioning/Processing Speed from CDS Total Score

Overall Model: Adjusted R2=.271; F=5.935 (p<.001)

Independent Variable Unstandardized b SE Semi-partial
Correlation		 p
Age −0.120 0.094 −.113 0.204
Sex
   Male Reference
   Female 4.805 1.208 .352 <0.001
Pack-years 0.011 0.019 .050 0.575
Estimated Premorbid IQ (WRAT-IV) 0.305 0.080 .338 <0.001
Depression and Anxiety (HADS) −0.129 0.130 −.088 0.324
COPD Diagnosis
   No COPD Reference
   COPD −3.337 1.326 −.223 0.014
CDS Total Score −0.072 0.034 −.187 0.037

Note: The variables are bolded if they were significant (p<.05).