... 预防医学讨论版 -丁香园论坛 值（ Predictive Value Positive, PVP）=A/(A+B) *100%; 阴性预测值（ Predictive Value Negative, PVN）=D/(C+D) *100%; 这样的话，你必须知道你实验方法的灵敏度，特异度，才好判断阳性预测值高..
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Negative predictive value 阴性预测值 ; 阴性预期值 ; 和阴性预测值
negative predictive value NPV 阴性预测值
Taking DSA as a golden standard, the sensitivity, specificity, positive predictive value, negative predictive value of carotid artery ultrasound was 91.07%, 63.64%, 86.44%, 73.68%, respectively.
以血管造影为诊断参照标准，超声诊断颈动脉粥样硬化的敏感性、特异性、阳性预测值、阴性预测值分别为91.07%、63.64%、86.44%和73.68%。
The positive predictive value, negative predictive value and efficiency of diagnosis were 100.00%, 95.56% and 97.59%, respectively.
诊断慢性血吸虫病的阳性预告值、阴性预告值及诊断效率分别为100.00%、95.56%和97.59%。
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