Pressure sore risk calculators: some methodological issues

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Abstract
Pressure sore risk calculators have assumed a cardinal role in pressure sore prevention and management. Doubts have been expressed as to the extent to which the use of risk calculators should direct care as they have not been found to display high levels of reliability and validity. This paper raises important methodological issues regarding the reliability and validity of risk calculators in order to inform the debate as to the direction of future research in this area.