Kubota K, et al. - Researchers primarily assessed risk factors for delirium in patients staying in a surgical ward for more than 5 days and secondarily, they assess outcomes in patients with delirium. Age, and also physical restraint, past history of cerebrovascular disorder, malignancy, intensive care unit stay, pain, and high serum blood urea nitrogen were noted to be important factors associated with delirium in patients hospitalized for more than 5 days in a surgical ward. Patients with delirium were shown to have a higher length of hospital stays and the mortality rates.