... 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
A similar strategy with focus on a high negative predictive value of successive investigations is proposed for the exclusion of HFNEF in patients with breathlessness and no signs of congestion.
上述检查相继进行具有较高的阴性预测值，因此，对那些气促但无充血体征的患者来说，可以用相似的策略来排除hfnef。
The sensitivity of ultrasound was 93% and specificity was 100% with a positive predictive value of 100% and negative predictive value of 99% for the detection of haemothorax after trauma.
超声检查对创伤后血胸诊断的敏感性为93%，特异性为100%，阳性预测值为100%，阴性预测值为99%。
Objective It is to explore the predictive value of giant negative t wave in resting electrocardiogram for the diagnosis of coronary artery.
目的探讨静息心电图巨大倒置T波在冠心病诊断中的预测价值。
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