Mild cognitive impairment: prevalence and incidence according to different diagnostic criteria

Background Although mild cognitive impairment is associated with an increased risk of developing dementia, there has been little work on its incidence and prevalence. Aims To report age-specific prevalence, incidence and predictive validities for four diagnostic concepts of mild cognitive impairment. Method A community sample of 1045 dementia-free individuals aged 75 years and over was examined by neuropsychological testing in a three-wave...