两种压疮危险评估表预测效果的比较研究

[目的]测量并比较Waterlow压疮危险评估表和Braden修订版压疮危险评估表的预测效果。[方法]分别用两种评估表对332例病人进行评分,分析不同临界值时敏感性、特异性、阳性预测价值、阴性预测价值。[结果]Braden修订版压疮危险评估表以19分为临界值、Waterlow压疮危险评估表以15分为临界值时敏感性、特异性、阳性预测价值、阴性预测价值等指标间能达到较好的平衡,且Braden修订版压疮危险评估表各指标均大于Waterlow压疮危险评估表;Braden修订版压疮危险评估表的ROC曲线下面积略高于Waterlow压疮危险评估表。[结论]Braden修订版压疮危险评估表和Waterlow压疮危险评估表都有较好的预测效果,尤其以Braden修订版效果更优。

A comparative study on predictive effect of two kinds of pressure sore risk evaluation scale

Objective:To measure and to compare the predictive effect between Waterlow pressure sore risk assessment scale and revised Braden pressure sore risk assessment scale.Methods:A total of 332 patients were scored respectively by adopting above two different scales.Then the sensitivity,specificity,positive predictive value and negative predictive value of different critical values were analyzed.Results:It showed a better balance among indexes of the sensitivity,specificity,positive predictive value and negative predictive value as the critical value of revised Braden pressure sore risk assessment scale was 19 and the critical value of Waterlow pressure sore risk assessment scale was 15.And every index of revised Braden scale was higher than that of Waterlow scale.The area under ROC curve of revised Braden scale was a little higher than that of Waterlow scale.Conclusion:Both the revised Braden pressure sore risk assessment scale and Waterlow scale have better predictive effect.However,the effect of revised Braden pressure sore risk assessment scale was much better than that of Waterlow scale.