Norton量表预测神经科患者发生压疮的效果

Predictive effect of Norton scale on the pressure ulcer patients from department of neurology

目的探讨Norton量表对神经科住院患者发生压疮的预测效果。方法应用Norton量表对6454例神经科住院患者进行筛查和持续性评估，对筛查阳性患者实施针对性的预防措施，记录评分及患者发生压疮的情况。计算不同临界值对应的预测值，绘制ROC曲线，并计算曲线下面积。结果该量表在最佳临界值为14分时压疮预测的灵敏度为92．59％、特异性为84．10％、阳性预测值为2．20％、阴性预测值99．96％，ROC曲线下面积〉0．9。结论Norton量表对神经科住院患者发生压疮预测效果较好；神经科可以统一应用Norton量表对住院患者进行压疮高危患者的筛查。

Objective To discuss the predictive effect of Norton scale on the pressure ulcer from neurology patients. Methods Totals of 6 454 hospitalized patients in Neurology Department were screened and estimated constantly by Norton scale, the targeted prevention measure were implemented on patients with positive, and the situation of patients with pressure ulcer was observed and predictive value at different threshold was calculated, ROC curve was obtained and the area below curve was calculated. Results The sensitivity was 92.59%, specificity was 84.10%, the positive prediction value was 2.20% and the negative prediction value was 99.96%, the area below ROC curve was lager than 0.9 when threshold was 14. Conclusions Norton scale have a good predictive effect of the pressure ulcer on patients in Neurology departments, and it could be applied uniformly to screen hospitalized patients at high-risk pressure sores.