Predictive value of transabdominal ultrasonography
| Sensitivity (%) | Specificity (%) | Crude predictive value (%) | Adjusted predictive value (%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Positive | Negative | Positive | Negative | ||||||||
| Overall | 77 | 67 | 84 | 57 | 26 | 95 | |||||
| Dilated ducts | 66 | 76 | 83 | 55 | 29 | 94 | |||||
| ERCP <100 days | 81 | 64 | 86 | 54 | 25 | 96 | |||||
| ERCP >100 days | 73 | 62 | 76 | 57 | 22 | 94 | |||||
ERCP, endoscopic retrograde cholangiopancreatography.