Agreement performances calculated between GP and ORC decisions and GP and RC decisions
| Metric | ECG report performance | CHART report performance | CHART compare to ECG hypothesis test with 95% CI | |||||
| Lower conf. % | Observed value % | Upper conf. % | Lower conf. % | Observed value % | Upper conf. % | |||
| ORC versus GP | PPA% | 44.8 | 52.0 | 59.1 | 60.1 | 67.0 | 73.4 | Significant increase |
| NPA% | 72.9 | 77.7 | 81.9 | 76.8 | 81.3 | 85.3 | Not significant increase | |
| PPV% | 49.6 | 57.1 | 64.4 | 61.4 | 68.3 | 74.7 | Significant increase | |
| NPV% | 69.0 | 73.8 | 78.3 | 75.8 | 80.4 | 84.5 | Significant increase | |
| K% | 24.5 | 30.2 | 36.2 | 42.2 | 48.5 | 54.7 | Significant increase | |
| PR% | 29.2 | 33.2 | 37.3 | 32.8 | 36.8 | 41.0 | Not significant increase | |
| RC versus GP | PPA% | 48.0 | 55.7 | 63.2 | 60.6 | 67.7 | 74.3 | Significant increase |
| NPA% | 73.7 | 78.5 | 82.7 | 75.6 | 80.4 | 84.5 | Not significant increase | |
| PPV% | 49.5 | 57.3 | 64.8 | 59.5 | 66.7 | 73.3 | Significant increase | |
| NPV% | 72.5 | 77.3 | 81.6 | 76.4 | 81.1 | 85.2 | Not significant increase | |
| K% | 28.2 | 34.4 | 40.9 | 41.5 | 47.9 | 54.4 | Significant increase | |
| PR% | 29.2 | 33.2 | 37.5 | 33.1 | 37.3 | 41.6 | Not significant increase | |
Better performance values are shown in bold.
CHART, Cardio-HART; GP, general practitioner; K, kappa statistics; NPA, negative per cent agreement; NPV, negative predictive value; ORC, over-reading cardiologist; PPA, positive per cent agreement; PPV, positive predictive value; PR, positive rate; RC, referral cardiologist.