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Numbers and proportions of false negative and false positive subjects classified as having AF for the different electronic health data sources
| Electronic health data source | Numbers with AF | False positive n (%) | False negative n (%) |
|---|---|---|---|
| Validated AF | 2,274 | 0 (0) | 0 (0) |
| NPR | 2,196 | 77 (3.5) | 155 (6.8) |
| ECG database | 2,329 | 264 (11.3) | 209 (9.2) |
| Both NPR and ECG database | 1,947 | 37 (1.9) | 364 (16.0) |
Abbreviations: AF, atrial fibrillation; ECG, electrocardiography; NPR, National Patient Register.
