Table 2.
Prognostic values of different CBDS predictors and VUHI.
| Predictors | Sensitivity (%) | Specificity (%) | Positive predictive value (%) | Negative predictive value (%) | Accuracy (%) | Odds ratio (95% CI) | p value |
|---|---|---|---|---|---|---|---|
| Total bilirubin Cut-off >20 µmol/l | 83.6 | 24.2 | 66.8 | 44.8 | 62.6 | 1.63 (0.95–2.8) | 0.075 |
| Cut-off >30.78 µmol/l | 76.5 | 36.3 | 68.7 | 45.9 | 62.3 | 1.86 (1.15–3.0) | 0.011 |
| CBD > 6 mm | 92.5 | 32.2 | 71.3 | 70.2 | 71.1 | 5.85 (3.15–10.9) | <0.001 |
| CBDS on US | 51.3 | 84.6 | 86.2 | 48.3 | 63.0 | 5.81 (3.3–10.26) | <0.001 |
| VUHI ≥4.7 | 80.5 | 54.0 | 76.1 | 60.4 | 71.1 | 4.86 (3.00–7.88) | 0.000 |
CBDS: common bile duct stones; VUHI: Vilnius University Hospital Index; US: ultrasound; CI: confidence interval. Statistically significant values are typed in bold.