Range: 1.02‑0. The lower the better.
Pressure ulcers are serious pressure sores (bedsores) that develop while a patient is in the hospital. They are caused by remaining in one position for an extended period of time (commonly in a bed or wheelchair). Patients who are elderly or who have poor circulation have a higher risk of developing ulcers. Stage III and IV pressure ulcers are very deep, serious sores that may reach muscle or bone. They cause pain and infection, and may prolong hospital stay or lead to amputation. Hospitals can prevent pressure ulcers by frequently moving or turning bedridden patients.