AlbertM. S., MossM. B., TanziR. and JonesK. (2001). Preclinical prediction of AD using neuropsychological tests. Journal of the International Neuropsychological Society, 7, 631–639.
et al. (2007). The National Alzheimer's Coordinating Center (NACC) database: the Uniform Data Set. Alzheimer Disease and Associated Disorders, 21, 249–258.
ClarkeD. E., KoJ. Y., LyketsosC., RebokG. W. and EatonW. W. (2010). Apathy and cognitive and functional decline in community-dwelling older adults: results from the Baltimore ECA longitudinal study. International Psychogeriatrics, 22, 819–829.
et al. (2008). APOE epsilon 4 allele predicts faster cognitive decline in mild Alzheimer disease. Neurology, 70, 1842–1849.
CronkB. B., JohnsonD. K. and BurnsJ. M. (2010). Body mass index and cognitive decline in mild cognitive impairment. Alzheimer Disease and Associated Disorders, 24, 126–130.
FolsteinM. F., FolsteinS. E. and McHughP. R. (1975). “Mini-mental state”: a practical method for grading the cognitive state of patients for the clinician. Journal of Psychiatric Research, 12, 189–198.
et al. (2010). To GEE or not to GEE: comparing population average and mixed models for estimating the associations between neighborhood risk factors and health. Epidemiology, 21, 467–474.
KaplanE., GoodglassH. and WeintraubS. (1983). The Boston Naming Test. Philadelphia, PA: Lea and Febiger.
et al. (2010). Comparing predictors of conversion and decline in mild cognitive impairment. Neurology, 75, 230–238.
LiangK. Y. and ZegerS. (1973). Longitudinal data analysis using generalized linear models. Biometrika, 1, 13–22.
LittleR. J. A. and RubinD. B. (1987). Statistical Analysis with Missing Data. New York: J. Wiley & Sons.
MorrisJ. C. (1993). The Clinical Dementia Rating (CDR): current version and scoring rules. Neurology, 43, 2412–2414.
et al. (1989). The Consortium to Establish a Registry for Alzheimer's Disease (CERAD). Part I. Clinical and neuropsychological assessment of Alzheimer's disease. Neurology, 39, 1159–1165.
et al. (2001). Mild cognitive impairment represents early-stage Alzheimer disease. Archives of Neurology, 58, 397–405.
PetersenR. C. (2004). Mild cognitive impairment as a diagnostic entity. Journal of Internal Medicine, 256, 183–194.
et al. (2001). Current concepts in mild cognitive impairment. Archives of Neurology, 58, 1985–1992.
R Development Core Team (2008). R: A Language and Environment for Statistical Computing. Vienna: R Foundation for Statistical Computing.
ReisbergB. (2007). Global measures: utility in defining and measuring treatment response in dementia. International Psychogeriatrics, 19, 421–456.
ReitanR. and WolfsonD. (1993). The Halstead-Reitan Neuropsychological Test Battery: Theory and Clinical Interpretation. Tucson, AZ: Neuropsychology Press.
RubinD. B. and SchenkerN. (1991). Multiple imputation in health-care databases: an overview and some applications. Statistics in Medicine, 10, 585–598.
StorandtM., GrantE. A., MillerJ. P. and MorrisJ. C. (2002). Rates of progression in mild cognitive impairment and early Alzheimer's disease. Neurology, 59, 1034–1041.
van BuurenS. (2007). Multiple imputation of discrete and continuous data by fully conditional specification. Statistical Methods in Medical Research, 16, 219–242.
WechslerD. (1981). Wechsler Adult Intelligence Scale – Revised. San Antonio, TX: Psychological Corporation.
WechslerD. (1987). Wechsler Memory Scale – Revised Manual. San Antonio, TX: Psychological Corporation.
et al. (2009). The Alzheimer's Disease Centers’ Uniform Data Set (UDS): the neuropsychologic test battery. Alzheimer Disease and Associated Disorders, 23, 91–101.
et al. (2010). Influence of apolipoprotein E varepsilon4 on rates of cognitive and functional decline in mild cognitive impairment. Alzheimers & Dementia, 6, 412–419.
et al. (2010). Trajectories of cognitive decline in Alzheimer's disease. International Psychogeriatrics, 22, 281–290.
WilsonR. S., LeurgansS. E., BoyleP. A., SchneiderJ. A. and BennettD. A. (2010). Neurodegenerative basis of age-related cognitive decline. Neurology, 75, 1070–1078.
WilsonR. S., LeurgansS. E., BoyleP. A. and BennettD. A. (2011). Cognitive decline in prodromal Alzheimer disease and mild cognitive impairment. Archives of Neurology, 68, 351–356.