Choi JY, Kim KI, Kang MG, et al. - Since postoperative delirium (POD) is a common clinical syndrome with significant negative outcomes, researchers conducted this retrospective cohort study at a single teaching center in Korea to assess the feasibility and efficacy of a delirium screening tool and multidisciplinary delirium prevention project. They compared a cohort of patients who had a delirium prevention program utilizing a simple delirium screening tool from December 2018 to February 2019 (intervention group, N = 275) with the cohort from the year before implementation of the delirium prevention program (December 2017 to February 2018) (control group, N = 274). Participants in the study were patients (aged ≥ 65 years) who were admitted to orthopedic wards and underwent surgery. The screening tool's sensitivity and specificity for POD incidence were 94.1 and 72.7%, respectively. Data reported that POD incidence rates were 10.2% (control group) and 6.2% (intervention group). According to findings, patients at high risk of POD at admission were successfully identified by the screening tool. The program for POD prevention was feasible to introduce, effective in preventing delirium, and improved delirium awareness among medical staff.