Computed results for the three index tests after multiple imputation (pooled data, n=4339)*
| Index test | Index test result | 12-lead ECG† | ||
| AF | No AF | Total | ||
| Radial pulse palpation | Irregular | 22 | 353 | 375 |
| Regular | 13 | 3951 | 3964 | |
| Total | 35 | 4304 | 4339 | |
| WatchBP Home A | ‘AFIB’ | 24 | 152 | 176 |
| No ‘AFIB’ | 11 | 4152 | 4163 | |
| Total | 35 | 4304 | 4339 | |
| MyDiagnostick | Red indicator light | 31 | 92 | 123 |
| Green indicator light | 4 | 4212 | 4216 | |
| Total | 35 | 4304 | 4339 | |
*To limit verification bias, we performed the reference test (12-lead ECG) in a 10% random sample of patients with three negative index tests. In addition, to calculate all relevant diagnostic parameters, we used multiple imputation in the analysis.
†These are the computed results of 100 datasets with 10 iterations per set, created with multiple imputation (see main text).
AF, atrial fibrillation.