Subgroup analysis assessing the ability of high-resolution manometry using barium oesophagram as the reference standard
| Automated localisation | Physician 1 | Physician 2 | |
| Sensitivity | 4.7% | 33.3% | 25.0% |
| Specificity | 98.0% | 84.9% | 82.8% |
| Positive likelihood ratio | 2.1 | 2.2 | 1.5 |
| Negative likelihood ratio | 0.98 | 0.79 | 0.91 |
| Positive predictive value | 33.3% | 34.8% | 26.1% |
| Negative predictive value | 80.8% | 74.8% | 82.0% |