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An assessment tool for predicting pressure sore risk was developed on the basis of review of previously developed tools. The new pressure sore risk assessment scale was composed of 8 subscales which reflect sensory perception, skin moisture, activity, mobility, friction and shear nutritional status, body temperature, and amount of medications(analgesics and sedatives). In order to test predictive validity of the scale. Pressure sore risk assessments were made with the two pressure sore risk assessment scales-the researcher developed scale, and the Braden Scale which developed and validity tested in the United States-to 146 neurological and neurosurgical patients on admission and every other day until discharge. Sixteen patients developed pressure sores. Predictive validity was calculated for each cut-off point of the two scale scores. Using the cut-off point of 24, sensitivity was 87.5% and specificity of 91.5% for the new scale. The sensitivity of 91.5% for the new scale. The sensitivity and specificity was 100% and 73.1% when cut-off point of 26 was applied. In Braden Scale, using cut-off point of 16, sensitivity and specificity were 81.3% and 93.8%. And it was 100% and 60.8% when cut-off point was 20. The results supported predictive validity of the both instruments. Although the new pressure risk assessment scale showed superior sensitivity and specificity compare to previously developed instruments.
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