The incidence and prevalence of delirium in the Intensive Care Unit (ICU) is extremely high. Generally, the incidence and prevalence of delirium in the hospitalized patients in the ICU are 29-31% (1, 2) and 11-25% (3, 4), respectively. Each additional day with delirium increases a patient’ s risk of dying by 10%. The incidence of delirium among mechanically ventilated patients compared to non-intubated patients has been reported to be 45 to 87% more [5-8]. Due to the high prevalence of delirium in hospitalized patients in the ICU, the many effects of delirium on the short and long term outcomes of patients, and the imposition of high costs on the health system; several studies have assessed the impacts of delirium on both the patients and healthcare systems [8, 9]. Recently, a study has investigated the costs of delirium over a one year period. Results have revealed that delirium is responsible for between $60, 000 and $64, 000 of additional health-care costs per patient with delirium per year. In a one year period, the total direct costs attributable to delirium in the United States of America has been estimated to range from $38 billion to up to $152 billion [9]. The costs associated with delirium in mechanically ventilated patients in the United States of America is around 4– 16 billion dollars per year [10] which is the impact of delirium on the health system. The short-term implications of delirium for hospitalized patients in ICU include prolonged hospital stay, functional decline during hospitalization, increased risk of developing a hospital-acquired complication, and increased admission to long-term care [11, 12]. Chronic cognitive impairment and different physical and psychological functional disabilities are among the long-term impacts for hospitalized patients in ICU [13]. In overall, it can be concluded that there are differences between the complications of delirium incidence, both short and long term, in admitted patients to the ICU by sex, socioeconomic status, race, ethnicity, and even the degree to which one practices an organized religion (religiosity) [14]. . .