Concordance between DSM-IV and DSM-5 criteria for delirium diagnosis in a pooled database of 768 prospectively evaluated patients using the delirium rating scale-revised-98
Meagher, David J.; Morandi, Alessandro; Inouye, Sharon K.; Ely, Wes; Adamis, Dimitrios; Maclullich, Alistair J.; Rudolph, James L.; Neufeld, Karin; Leonard, Maeve; Bellelli, Giuseppe; Davis, Daniel; Teodorczuk, Andrew; Kreisel, Stefan; Thomas, Christine; Hasemann, Wolfgang; Timmons, Suzanne; O'Regan, Niamh; Grover, Sandeep; Jabbar, Faiza; Cullen, Walter; Dunne, Colum P.; Kamholz, Barbara; Van Munster, Barbara C.; de Rooij, Sophie E.; de Jonghe, Jos; Trepacz, Paula T.
Date:
2014-09-30
Copyright:
© 2014 Meagher et al.; licensee BioMed Central Ltd., 2014. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
Citation:
MEAGHER, D. J., MORANDI, A., INOUYE, S. K., ELY, W., ADAMIS, D., MACLULLICH, A. J., RUDOLPH, J. L., NEUFELD, K., LEONARD, M., BELLELLI, G., DAVIS, D., TEODORCZUK, A., KREISEL, S., THOMAS, C., HASEMANN, W., TIMMONS, S., O’REGAN, N., GROVER, S., JABBAR, F., CULLEN, W., DUNNE, C., KAMHOLZ, B., VAN MUNSTER, B. C., DE ROOIJ, S. E., DE JONGHE, J. & TRZEPACZ, P. T. 2014. Concordance between DSM-IV and DSM-5 criteria for delirium diagnosis in a pooled database of 768 prospectively evaluated patients using the delirium rating scale-revised-98. BMC Medicine, 12:164 , 1-10. http://dx.doi.org/10.1186/s12916-014-0164-8
Abstract:
BACKGROUND: The Diagnostic and Statistical Manual fifth edition (DSM-5) provides new criteria for delirium diagnosis. We examined delirium diagnosis using these new criteria compared with the Diagnostic and Statistical Manual fourth edition (DSM-IV) in a large dataset of patients assessed for delirium and related presentations. METHODS: Patient data (n = 768) from six prospectively collected cohorts, clinically assessed using DSM-IV and the Delirium Rating Scale-Revised-98 (DRS-R98), were pooled. Post hoc application of DRS-R98 item scores were used to rate DSM-5 criteria. ‘Strict’ and ‘relaxed’ DSM-5 criteria to ascertain delirium were compared to rates determined by DSM-IV. RESULTS: Using DSM-IV by clinical assessment, delirium was found in 510/768 patients (66%). Strict DSM-5 criteria categorized 158 as delirious including 155 (30%) with DSM-IV delirium, whereas relaxed DSM-5 criteria identified 466 as delirious, including 455 (89%) diagnosed by DSM-IV (P <0.001). The concordance between the different diagnostic methods was: 53% (ĸ = 0.22) between DSM-IV and the strict DSM-5, 91% (ĸ = 0.82) between the DSM-IV and relaxed DSM-5 criteria and 60% (ĸ = 0.29) between the strict versus relaxed DSM-5 criteria. Only 155 cases were identified as delirium by all three approaches. The 55 (11%) patients with DSM-IV delirium who were not rated as delirious by relaxed criteria had lower mean DRS-R98 total scores than those rated as delirious (13.7 ± 3.9 versus 23.7 ± 6.0; P <0.001). Conversely, mean DRS-R98 score (21.1 ± 6.4) for the 70% not rated as delirious by strict DSM-5 criteria was consistent with suggested cutoff scores for full syndromal delirium. Only 11 cases met DSM-5 criteria that were not deemed to have DSM-IV delirium. CONCLUSIONS: The concordance between DSM-IV and the new DSM-5 delirium criteria varies considerably depending on the interpretation of criteria. Overly-strict adherence for some new text details in DSM-5 criteria would reduce the number of delirium cases diagnosed; however, a more ‘relaxed’ approach renders DSM-5 criteria comparable to DSM-IV with minimal impact on their actual application and is thus recommended.
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