Cognition and the perception of physical symptoms in the community-dwelling elderly.

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Abstract
Elderly people frequently complain of somatic (physical) symptoms that prompt them to seek medical intervention. The aim of this study was to evaluate the effect of cognitive impairment on somatic symptom complaints by the elderly. Symptoms (spontaneously reported and reported after explicit inquiry) pertaining to 15 organ systems were assessed in a random sample of 462 community-dwelling individuals over the age of 75 years. The symptoms increased with decreasing cognitive performance with no, very mild, and mild cognitive impairments as indicated on the Mini-Mental State Examination. The trend of increasing reports of symptom with decreasing cognitive performance was significant (p = .0001); the association remained significant after controlling for potential confounders in multivariate analysis (p < .05). The authors, who found that mild cognitive impairment was associated with perception of poorer body functioning, suggest that the clinical interpretation of somatic symptoms in the elderly should take cognitive impairment into account.

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