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  • Title: Characteristics of Mini-Mental State Examination 1 year after stroke.
    Author: Appelros P.
    Journal: Acta Neurol Scand; 2005 Aug; 112(2):88-92. PubMed ID: 16008533.
    Abstract:
    OBJECTIVES: The Mini-Mental State Examination (MMSE) is commonly used to evaluate cognition after stroke. The purpose of this study was to describe the properties of MMSE in relation to different stroke characteristics. MATERIALS AND METHODS: Subjects were survivors (n = 253) of a population-based cohort who had had a first-ever stroke 1 year earlier. At baseline, patients were evaluated with regard to stroke type, stroke severity, unilateral neglect, and prestroke dementia. The 1-year follow-up included an MMSE, a functional evaluation according to the modified Rankin Scale (MRS) and a question regarding subjective memory problems. RESULTS: The mean MMSE was 24.9. Patients with lacunar infarction scored 26.6. Impact of hemisphere localization was insignificant. Twenty-nine percent of the patients had cognitive impairment (cut-off <24). After adjustment for age and education, 16% had cognitive impairment; 41% of the patients had subjective memory problems. The kappa-value between subjective memory problems and dichotomized MMSE was 0.21. Patients with cognitive impairment scored at average 1.8 higher on the MRS. CONCLUSIONS: If cut-off is used, the MMSE should be adjusted for age and education; otherwise the prevalence of cognitive impairment may be overestimated. Cognitive impairment heavily influences functional outcome. Subjective memory problems correlate poorly with MMSE. The impact of hemisphere location may previously have been overestimated.
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