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How to evaluate a diagnostic test.

机译:如何评估诊断测试。

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摘要

Tests are used in dentistry to establish, confirm, or reject the clinical impression of a diagnosis. Not all tests are equal in their ability to establish a diagnosis, with some tests demonstrating positive results when no disease is present (false positive) or negative results when disease is present (false negative). Using simple mathematical computations, it is possible to determine the extent to which a test can reliably establish the presence or absence of disease. This article describes the concepts of sensitivity, specificity, positive predictive value, negative predictive value, and likelihood ratios through the evaluation of a clinically relevant paper on vital staining for oral carcinoma. This article also describes methods for literature evaluation to determine whether a test conveys meaningful diagnostic information.
机译:牙科中使用测试来建立,确认或拒绝诊断的临床印象。并非所有测试都具有相同的诊断能力,有些测试在没有疾病的情况下显示阳性结果(假阳性),在没有疾病的情况下显示阴性结果(假阴性)。使用简单的数学计算,可以确定测试可以可靠地确定是否存在疾病的程度。本文通过对口腔癌重要染色的临床相关论文的评估​​,描述了敏感性,特异性,阳性预测值,阴性预测值和可能性比的概念。本文还介绍了文献评估以确定测试是否传达有意义的诊断信息的方法。

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