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. Author manuscript; available in PMC: 2019 May 13.
Published in final edited form as: J Alzheimers Dis. 2018;63(4):1383–1393. doi: 10.3233/JAD-170769

Table 3a.

Dichotomous model for unimpaired transition to aMCI (n=224)

Effect Odds ratio p value
Memory summary score<0.899 2.72 (1.17 – 6.34) 0.0204
Hippocampus<7310 2.08 (0.92 – 4.73) 0.08
Tau/Aβ ratio>=0.341 3.74 (1.62 – 8.65) 0.0020
Follow-up years 1.45 (1.26 – 1.68) <0.0001
*

C statistic from logistic regression: 0.80, cutpoints determined from ROC curves