Accuracy of prognostic variables was analyzed by ROC curves.
预后变量的准确性则经过RO c曲线分析。
BACKGROUND: ROC curves have become the standard for describing and comparing the accuracy of diagnostic tests.
背景：ROC曲线成为了目前描述和比较诊断试验的精确度的标准。
METHODS: We reviewed every original work using ROC curves and published in Clinical Chemistry in 2001 or 2002.
方法：通过回顾2001年到2002年间在临床化学杂志上发表的使用ROC曲线的每一篇原始文献。
Methods The diagnostic efficiency of MRI and us in 86 cases (including 34 cases with ct) of benign and malignant biliary obstruction were compared using ROC curves.
方法对86例同时行mri、US(包括34例兼有ct)检查的胆道梗阻患者，采用ROC曲线进行良恶性诊断效能的比较。
Methods The diagnostic efficiency of MRI and us in 86 cases (including 34 cases with ct) of benign and malignant biliary obstruction were compared using ROC curves.
方法对86例同时行mri、US(包括34例兼有ct)检查的胆道梗阻患者，采用ROC曲线进行良恶性诊断效能的比较。
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