The selection of patients, exclusions, assessments and analyses have been described previously. 8 Briefly, all patients aged 60 years and above admitted to the Department of Elderly Medicine during October and November 1997 were included in the study. Patients were assessed with the AMT followed by the MMSE, once the acute phase of the admission was over. The AMT4 score was derived from the AMT score. An AMT4 score of 0-3 indicated impaired cognition and a score of 4 normal cognition. 6 The AMT4 score was compared with the AMT and MMSE scores for each patient. Results During the study period 364 patients were admitted to the Department of Elderly Medicine, of whom 88 (24.2%) were excluded, leaving a study group of 276 patients. There was a strong relationship between the AMT4 and AMT when analysed dichotomously: χ 2 = 121.2, df = 1, p < 0.001. The predictive efficiency of the AMT4 for cognitive state by the AMT was 83.3% (230/276). The remaining performance parameters of the AMT4 against the AMT were as follows: positive predictive value 78.1% (107/137), negative predictive value 88.5% (123/139), sensitivity 87.0% (107/123) and speci
In patients admitted to the elderly medicine unit, the AMT gave predictive information about cognitive status as determined by the MMSE, and also a prediction of likely MMSE score.
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