Table 1.
Characteristics of 122,815 eligible continuous ambulatory ECG monitoring records between November 2011 and December 2013
| Characteristics | Overall | Non-sustained ventricular tachycardia | Sustained ventricular tachycardia | Sinus pause | Atrial fibrillation pause | Symptomatic pause | High-grade heart blocka |
|---|---|---|---|---|---|---|---|
| N = 122,815 | N = 22,443 | N = 238 | N = 1,766 | N = 521 | N = 249 | N = 1,468 | |
| Age, years, N (%) | |||||||
| < 65 | 61,170 (49.8) | 7,787 (34.7) | 102 (42.9) | 497 (28.1) | 88 (16.9) | 60 (24.1) | 481 (32.8) |
| 65–79 | 42,469 (34.6) | 9,596 (42.8) | 102 (42.9) | 735 (41.6) | 272 (52.2) | 133 (53.4) | 582 (39.7) |
| ≥ 80 | 19,176 (15.6) | 5,060 (22.6) | 34 (14.3) | 534 (30.2) | 161 (30.9) | 56 (22.5) | 405 (27.6) |
| Women, N (%) | 65,081 (53.0) | 8,316 (37.1) | 59 (24.8) | 698 (39.5) | 238 (45.7) | 131 (52.6) | 571 (38.9) |
| Wear Days | |||||||
| Mean (Standard Deviation) | 9.6 (4.0) | 10.8 (3.5) | 10.7 (3.4) | 10.7 (3.7) | 11.1 (3.4) | 10.9 (3.5) | 10.4 (3.7) |
| Median (IQR) | 9.9 (6.8–13.8) | 12.9 (7.1–13.9) | 12.1 (7.1–13.9) | 12.9 (7.0–14.0) | 13.0 (7.3–14.0) | 12.9 (7.1–14.0) | 12.1 (7.0–13.9) |
| Analyzable Days | |||||||
| Mean (Standard Deviation) | 9.2 (3.9) | 10.4 (3.5) | 10.1 (3.4) | 10.2 (3.7) | 10.5 (3.3) | 10.3 (3.4) | 9.9 (3.7) |
| Median (IQR) | 9.1 (6.4–13.1) | 11.8 (7.0–13.6) | 11.3 (6.9–13.4) | 11.8 (6.9–13.6) | 12.1 (7.1–13.6) | 11.7 (7.0–13.5) | 10.9 (6.8–13.5) |
aIncluded Mobitz II heart block and third-degree heart block