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A telephone screening assessment designed to identify persons likely to have dementia was conducted in a random community sample of 4,403 adults. Because of the cognitive impairment of the subjects, information was obtained from caregivers. Twenty-nine subjects were identified as likely to have dementia. Of these, 15 agreed to a complete dementia assessment conducted in their residence, and all were diagnosed with dementia. There was high reliability between the caregiver telephone interview and the clinical examination.