In Denmark, more than 30.000 people are annually admitted to intensive care units. The annual report from the Danish Intensive Care Database (DID) present data regarding a variety of outcomes, including length of stay, survival rate and 90 days re-admission to hospital. The reports demonstrate an increased quality of care but offer limited information on longer term outcome including quality of life for these patients. A recent study have indicated that Danish patients might suffer from the same psychological and physical impairments as found in international studies, but a better characteristic of the population is needed. Especially since the level of public care, including early rehabilitation in hospital differs between countries.