Table 5.
Comparison of AT-Patch-recorded data between participants with and without atrial fibrillation (N=320).
| ECGa | Value, mean (SD) | Atrial fibrillation by AT-Patch | Atrial fibrillation by AT-Patch or 12-lead ECG | ||||||
|
|
|
Yes (n=11), mean (SD) | No (n=309), mean (SD) | P value | Yes (n=14), mean (SD) | No (n=306), mean (SD) | P value | ||
| Total recording time (hours) | 263.8 (15.56) | 240.2 (59.63) | 264.6 (10.71) | .04 | 245.8 (53.47) | 264.6 (10.76) | .10 | ||
| Total valid time with noise (hours) | 241.0 (45.33) | 228.2 (70.41) | 241.4 (44.28) | .50 | 234.7 (63.3) | 241.3 (44.46) | .98 | ||
| Total valid time without noise (hours) | 206.7 (59.96) | 188.5 (69.28) | 207.4 (59.62) | .21 | 195.75 (63.8) | 207.2 (59.84) | .31 | ||
| Proportion of total valid time (%) | 84.3 (17.13) | 78.9 (20.55) | 84.4 (17.01) | .28 | 80.4 (18.80) | 84.4 (17.07) | .32 | ||
| Proportion of noise time (%) | 15.8 (17.13) | 21.1 (20.55) | 15.6 (17.01) | .28 | 19.6 (18.80) | 15.6 (17.07) | .32 | ||
| Normal sinus rhythm (%) | 98.2 (4.22) | 91.4 (8.99) | 98.4 (3.75) | <.001 | 92.60 (8.27) | 98.43 (3.77) | <.001 | ||
| Ventricular ectopy (%) | 0.5 (1.65) | 5.2 (5.25) | 1.2 (3.36) | <.001 | 2.84 (4.92) | 0.37 (1.25) | <.001 | ||
| Supraventricular ectopy (%) | 1.3 (3.50) | 3.4 (5.45) | 0.4 (1.24) | .001 | 4.56 (4.83) | 1.20 (3.37) | <.001 | ||
| Heart rate (beats/min) | |||||||||
|
|
Mean | 67.8 (8.60) | 68.1 (10.38) | 67.7 (8.55) | .98 | 67.4 (9.46) | 67.8 (8.58) | .77 | |
|
|
Minimum | 50.5 (7.51) | 53.6 (9.26) | 50.4 (7.44) | .24 | 52.6 (9.15) | 50.4 (7.43) | .28 | |
|
|
Maximum | 104.4 (17.51) | 107.6 (29.78) | 104.3 (16.98) | .75 | 105.9 (27.88) | 104.3 (16.95) | .83 | |
aECG: electrocardiogram.