Oxford University Press, International Journal of Epidemiology, 2(43), p. 600-610, 2013
DOI: 10.1093/ije/dyt242
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Backgound Identifying mild cognitive impairment (MCI) in midlife could improve early identification of Alzheimer’s disease (AD). Also, AD is highly heritable, but the heritability of MCI has not been established. We estimated prevalence rates, association with premorbid general cognitive ability (GCA) and heritability for different definitions of neuropsychologically defined MCI in adults in their 50s.