Abstract
Although delirium exacerbates the prognosis of ICU（Intensive Care Unit）patients, there exists no verified ICU delirium evaluation method in Japan. Therefore, we conducted verification of the validity and reliability of the Japanese version of ICDSC（Intensive Care Delirium Screening Checklist）at two ICU facilities in Japan. Using the evaluation of the DMS-IV-TR（Diagnostic and Statistical Manual of Mental Disorders, 4th edition, Text Revision）in the psychiatrists’group as the standard criteria for delirium diagnosis, we comparatively evaluated the Japanese version of ICDSC between the research nurses’group and the staff nurses’group. Eighty-two patients were examined and the prevalence of delirium turned out to be 22.0%. We examined the cutoff values of ICDSC and selected three points as the cutoff value for a clinical reason to secure high specificity. In this case, the Japanese version of ICDSC had the sensitivities of 66.7% and 72.2% and the specificities of 78.1% and 71.9% for the DSM-IV-TR, while the inter-rater reliability was estimated by a k-value of 0.55. Thus, the Japanese version of ICDSC proved to be a valid and reliable delirium evaluation tool based on DSM-IV-TR as well as a tool available for the retrospective evaluation of delirium.
