although delirium affects only 1-2% of the overall population, 18-35% of adults presenting to the hospital will have delirium, and delirium will occur in 29-65% of people who are hospitalized. Delirium occurs in 11-51% of older adults after surgery, in 81% of those in the ICU, and in 20-22% of individuals in nursing homes or post-acute care settings. Among those requiring critical care, delirium is a risk factor for death within the next year.

Because of the confusion caused by similar signs