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%。
A multivariable threshold scoring system was able to discriminate fetuses with a biventricular outcome with 100% sensitivity and modest positive predictive value.
一个多变量阈值评分系统可以区分出双心室结局的胎儿，敏感性达100%，而阳性预测价值不大。
HPV DNA testing already has a poor positive predictive value, especially in younger girls, they point out, and the absolute number of true positive tests would decrease substantially in this scenario.
他们指出，HPV DNA检验的阳性预测值已经不高，特别是对年轻的女性，在这种情况下，真阳性检验的绝对数目将会显著降低。
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