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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: Neuropsychologia. 2014 Apr 18;59:47–56. doi: 10.1016/j.neuropsychologia.2014.04.007

Table 6.

Logistic regression analyses predicting healthy aging vs. very mild Alzheimer’s disease

1st step variables_____ CCR R 2 2nd step variable CCR R2______
Age & delayed recall 74.5 .39 d’10 82.4 .59
Age & episodic memory 70.6 .43 d’10 78.4 .58
Age & global cognition 74.5 .40 d’10 80.4 .58
Age & d’10 78.4 .53 delayed recall 82.4 .59
Age & d’10 78.4 .53 episodic memory 78.4 .58
Age & d’10 78.4 .53 global cognition 80.4 .58

Episodic memory and global cognition refer to composite scores calculated from neuropsychological tests. CCR = correct classification rate; R2 refers to Nagelkerke’s R2