International journal of nursing studies
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Measurement error can seriously affect the validity of pressure ulcer risk assessment and of pressure ulcer classification. ⋯ The standardized study procedure applied in the annual nationwide pressure ulcer prevalence surveys leads to reliable and reproducible results regarding pressure ulcer risk and pressure ulcer prevalence in the home care setting. Researchers and practitioners should be careful when drawing inferences from single pressure ulcer risk factors included in the Braden scale. Descriptions of the items "moisture", "sensory perception" and "nutrition" should be made more clearly and unambiguous.