Frequency of delirium and its associated factors among COVID‐19 inpatients in Iran

Abstract Background and aim Delirium has been presented as the leading cause of sudden change in the mental state of patients with coronavirus disease 2019 (COVID‐19). Given that the delayed diagnosis of such a dysfunction is often associated with excess mortality, it seems essential to devote vastly more attention to this significant clinical characteristic. Materials and methods This cross‐sectional study was performed on 309 patients [viz. 259 cases hospitalized in general wards and 50 individuals admitted to the intensive care unit (ICU)]. For this purpose, a Demographic‐Clinical Information Questionnaire, the Confusion Assessment Method (CAM), the Confusion Assessment Method for the ICU (CAM‐ICU), the Richmond Agitation‐Sedation Scale (RASS) and face‐to‐face interviews were completed by a trained senior psychiatry resident. The data analysis was further done with the SPSS Statistics V22.0 software package. Results Out of 259 patients admitted to the general wards and 50 cases in the ICU due to COVID‐19, 41 (15.8%) and 11 (22%) individuals were diagnosed with delirium, respectively. As well, a significant relationship was observed between the incidence rate of delirium and age (p