Agreement between the extended role practitioners (ERP) and rheumatologists’ identification of inflammatory arthritis (IA) or systemic autoimmune rheumatic diseases (SARD).
| ERP | Rheumatologist | |||
|---|---|---|---|---|
| IA/SARD = Yes, n | IA/SARD = No, n | Total n | ||
| IA/SARD = Yes | 84 | 22 | 106 | PPV = 0.79 |
| IA/SARD = No | 29 | 42 | 71 | NPV = 0.59 |
| Total | 113 | 64 | 177 | |
| Sensitivity = 0.74 | Specificity = 0.66 | |||
PPV: positive predictive value; NPV: negative predictive value.