Test statistics for all users (supervisors and trainees)
| Hydronephrosis seen in departmental scan | Hydronephrosis not seen in departmental scan | ||
|---|---|---|---|
| Hydronephrosis in POCUS | 9 | 0 | PPV: 100% |
| Hydronephrosis not seen in POCUS | 1 | 86 | NPV: 99% |
| Sensitivity: 90% (9/10) | Specificity: 100% (86/86) |
NPV = negative predictive value; POCUS = point-of-care ultrasound; PPV = positive predictive value.