[Nutrition and pressure ulcers among old people].

In 2004 a Cochrane review was published with the objective of evaluating the effectiveness of nutritional support in the prevention and treatment of pressure ulcers. It was not possible for the reviewers to draw any definitive conclusions. A recent meta-analysis of five randomised controlled trials (four included in the Cochrane review), however, found a significantly lower incidence of pressure ulcer development in at-risk patients compared with those in routine care (OR 0.