Research Article
Neutrophil-to-Lymphocyte Ratio in Ovarian Cancer Patients with Low CA125 Concentration
Table 4
The formula of the sensitivity, specificity, PPV, and the NPV.
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TP: true positive; FP: false positive; FN: false negative; TN: true negative. Sensitivity=a/(a+c); specificity =d/(b+d); PPV=a/(a+b); NPV=d/(c+d). |