TABLE 4.
Characteristics of patients with high versus low risk of AF during ≤30 days of monitoring, matched for age, sex, and recording duration.
| Low risk | High risk | p‐Value | |
|---|---|---|---|
| N | 2465 | 2465 | |
| Age, mean (SD) | 71.5 (8.2) | 71.6 (8.1) | Matching variable |
| Probability of AF, median (IQR) | 3.8 (3.1–4.4) | 12.5 (11.1–14.5) | |
| Observed AF outcome events, % | 3.5% | 15.4% | <.001 |
| Male sex | 1089 (44.2) | 1089 (44.2) | Matching variable |
| Mean heart rate, mean (SD) | 75.4 (9.8) | 67.3 (10.0) | <.001 |
| Max heart rate, mean (SD) | 114.7 (16.7) | 99.3 (14.8) | <.001 |
| Minimum heart rate, mean (SD) | 59.0 (9.0) | 53.0 (8.6) | <.001 |
| Total PACs, median (IQR) | 15 (6, 30) | 1049 (311, 3799) | <.001 |
| Single PACs, median (IQR) | 12 (5, 23) | 839 (233, 3069) | <.001 |
| Occurrence of any PAC couplet, n (%) | 4.9 | 72.9 | <.001 |
| Number of PAC couplets, median (IQR) | 0 (0, 1) | 14 (5, 54) | <.001 |
| Occurrence of any PAC triplet, n (%) | 8.5 | 90.9 | <.001 |
| Number of PAC triplets, median (IQR) | 0 (0, 0) | 3 (1, 10) | <.001 |
| Occurrence of any SVT ≥4 beats, n (%) | 216 (8.7) | 2254 (91.3) | <.001 |
| SVTs ≥4 beats, median (IQR) | 0 (0, 0) | 3 (1, 8) | <.001 |
| AIVR events, median (IQR) | 0 (0, 0) | 0 (0, 0) | .23 |
| Total PVCs, median (IQR) | 18 (2, 202) | 88 (11, 566) | .96 |
| Single PVCs, median (IQR) | 17 (2, 198) | 84 (10, 548) | .60 |
| Occurrence of any PVC couplet, n (%) | 41.3 | 67.6 | <.001 |
| Number of PVC couplets, median (IQR) | 0 (0, 0) | 0 (0, 3) | .08 |
| Occurrence of any PVC triplet, n (%) | 47.8 | 69.4 | <.001 |
| Number of PVC triplets, median (IQR) | 0 (0, 0) | 0 (0, 0) | .01 |
| Occurrence of any VT run ≥4 beats | 79 (3.2) | 218 (8.8) | <.001 |
| Number of VT runs ≥4 beats, median (IQR) | 0 (0, 0) | 0 (0, 0) | .002 |
| Fastest pair interval rate of PAC couplet, bpm mean (SD) | 123 (22) | 137 (26) | <.001 |
| Fastest rate of PAC triplets, mean (SD) | 116 (22) | 130 (26) | <.001 |
| Fastest rate of SVT runs, mean (SD) | 127 (24) | 132 (24) | .003 |
| Fastest pair interval rate of PVC couplet, mean (SD) | 136 (32) | 135 (32) | .74 |
| Fastest rate of PVC triplets, mean (SD) | 125 (29) | 122 (34) | .80 |
| Fastest rate of VT runs, mean (SD) | 129 (23) | 134 (26) | .69 |