Once a patient's stroke has been evaluated and his condition has been stabilized, he'll be transferred out of the ER and into a hospital bed. How long he spends in the hospital depends on a number of factors, including the type and severity of his stroke, what medical complications arise, and the extent of his disability. But it's unlikely that he'll be in the hospital for long. According to the National Center for Health Statistics, the average length of hospitalization for stroke in 2005 was 5.2 days.