Journal of the American Geriatrics Society
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To evaluate to what extent delirium experts agree on the diagnosis of delirium when independently assessing exactly the same information and to evaluate the sensitivity of delirium screening tools in routine daily practice of clinical nurses. ⋯ There was considerable disagreement in classification of delirium by experts who independently assessed exactly the same information, showing the difficulty of delirium diagnosis. Furthermore, the sensitivity of daily delirium screening by clinical nurses was poor. Future research should focus on development of objective instruments to diagnose delirium.