Skip to main content
. Author manuscript; available in PMC: 2013 Aug 6.
Published in final edited form as: J Am Geriatr Soc. 2012 Aug 6;60(8):1471–1477. doi: 10.1111/j.1532-5415.2012.04066.x

Figure 1. Diagnostic Validity of the CAM Algorithm, Sequential and Additive Model for ICD-10 Delirium Diagnosis.

Figure 1

Original 4-item CAM algorithm (DSM-based), sequential application (original CAM algorithm, with sequential addition of the psychomotor change item only to the CAM-negative group) and additive model i.e., adding psychomotor change to the original CAM algorithm are depicted. All models are validated against the ICD-10 delirium diagnosis as reference standard. The area under the ROC curve adapted with maximum likelihood method is depicted. Sensitivity, specificity, positive and negative predictive values (PPV and NPV) as well as correct classification percentages are given.