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. Author manuscript; available in PMC: 2018 Apr 1.
Published in final edited form as: J Alzheimers Dis. 2018;62(2):887–900. doi: 10.3233/JAD-170909

Table 2.

Cognitive Aging-Genetic Risk Score (CA-GRS) effect model estimates for low and high Alzheimer’s disease-Genetic Risk Score (AD-GRS) as separated by APOE ε4− and ε4+ groups.

Intercept Slope Model Fit Statistics

β SE p β SE p H0 value Free Parameters −2LL AIC BIC
APOE ε4− group −1432.04 32 2864.08 2928.08 3059.58

Low AD-GRS: CA-GRS 0.248 0.166 0.135 0.012 0.011 0.279
Low AD-GRS: Sex 0.031 0.284 0.912 −0.004 0.017 0.797

High AD-GRS: CA-GRS 0.006 0.058 0.919 0.002 0.003 0.599
High AD-GRS: Sex −0.207 0.118 0.080 −0.011 0.006 0.050

APOE ε4+ group −490.72 32 981.44 1045.43 1141.56

Low AD-GRS: CA-GRS 0.300 3.393 0.930 0.001 0.122 0.994
Low AD-GRS: Sex 0.792 2.495 0.751 0.017 0.114 0.883

High AD-GRS: CA-GRS −0.396 0.151 0.009 −0.015 0.007 0.045
High AD-GRS: Sex 0.058 0.239 0.808 0.002 0.012 0.853

Abbreviations: Est. = regression estimate; SE = standard error; H0 = log likelihood; −2LL = −2 log likelihood; AIC = Akaike Information Criteria; BIC = Bayesian Information Criteria; COMT = Catechol-O-methyltransferase; BDNF = Brain-derived neurotrophic factor; APOE = Apolipoprotein E; CLU = Clusterin; CR1 = Complement receptor 1; PICALM = Phosphatidylinositol-binding clathrin assembly protein. CA-GRS = COMT + BDNF; AD-GRS = CLU + CR1 + PICALM.