Table 2.

Sensitivity, specificity, PPV∗, NPV∗ and AUROC of CT in the diagnosis of oesophageal variceal grading.

CT grading	No varices	Small	Medium	Large
Sensitivity 95% CI	66.6% 22.3–95.7	79.3% 60.3–92	89.6% 72.7–97.8	94.1% 80.3–99.3
Specificity 95% CI	96.9% 91.3–99.4	94.6% 86.9–98.5	86.6% 76.8–93.4	88.5% 78.7–94.9
PPV∗ 95% CI	57.1% 27.7–82.3	85.1% 68.5–93.8	72.2% 59–82.4	80% 67.5–88.5
NPV∗ 95% CI	97.9% 93.9–99.3	92.2% 85.3–96	95.5% 88.1–98.5	96.8% 89–99.2
AUROC 95% CI	0.775 0.54–1	0.887 0.80–0.97	0.839 0.75–0.93	0.913 0.85–0.98
p-Value	0.015	0.00	0.00	0.00

PPV, positive predictive value; NPV, negative predictive value; AUROC, area under the receiver operating curve.