Studies that used interface pressure measurement as a predictive or prognostic factor for the development or healing of pressure ulcers were eligible for inclusion. There were no restrictions in terms of population.
Included studies assessed patients who were sitting or lying. Patients were elderly patients at risk but free of pressure ulcers, patients who had already developed pressure ulcers and surgical intensive care patients. Follow-up ranged from 48 hours to 12 months. Studies assessed interface pressure using single cell pressure transducers or pressure mapping mats. Development and healing of pressure ulcers was evaluated by manual or visual inspection of skin or from photographs. A variety of methods were used to stage pressure ulcers.
Two reviewers selected studies for inclusion. Disagreements were resolved by a third reviewer.