Predicting missed delirium diagnosis in a tertiary care center: the Consultation-Liaison at the American University of Beirut (CLAUB) analysis

Abstract

Abstract Background Delirium is a very common occurrence in hospital settings and is frequently missed by the primary care team. It remains, however, poorly studied in the Middle East despite abundant global reports. In this study, we aimed to estimate the prevalence of missed delirium diagnosis in a tertiary care center in Lebanon and investigate potential predictors of this missed diagnosis. This was a retrospective study of adult patients admitted to the American University of Beirut Medical Center between March 2019 and December 2019 and assessed by the consultation-liaison psychiatry (CLP) team. The primary endpoint was the rate of missed delirium diagnosis among CLP consultations. Relevant statistical tests were performed to assess the association between the missed diagnosis of delirium and characteristics of patients. Results Five hundred fifty-three patients were included with a mean age of 69.19 ± 14.79 years. 86.13% of the patients received a delirium diagnosis by the CLP team that had been missed prior to the CLP referral. A missed delirium diagnosis was more likely to be found in patients with a history of depression (OR = 24, p < 0.01) and a longer hospital stay [in days] (OR = 1.04, p = 0.04). Conclusion The alarmingly high prevalence of missed delirium diagnosis is the first evidence of its kind in the Middle East. This urges the implementation of educational interventions to increase the detection of delirium among healthcare providers and ultimately improve patient outcomes.