Risk of incident Alzheimer's Dementia: Results from hierarchically formulated multivariate Cox proportional hazard regression models.

Note. M2LL of the Intercept model  = 830.6. Details of the modeling process are given in the methods section. The HR for the CERAD-DR is below one as it represents the HR for a one unit increase in CERAD-DR scores (i.e. for better memory performance). Lower CERAD-DR scores are therefore associated with a higher risk of developing incident AD. B  =  Beta-Coefficient of the predictor, CI  =  Confidence Interval, CERAD-DR  =  Delayed Recall of the Consortium to Establish a Registry for Alzheimer's Disease Neuropsychological Assessment Battery, HR  =  Hazard Ratio, M2LL  =  Minus-Two-Log-Likelihood, MC  =  Memory Concerns, SE  =  Standard Error for B.