Table 1 Patient characteristics at implantation.
Characteristic | All patients (n = 5,853) | Single-brand group (n = 5,615) | Mixed-brand group (n = 238) | P-value |
|---|---|---|---|---|
Age (years) | 72 (64–79) | 70 (65–79) | 73 (63–81) | 0.68 |
Female | 1424 (24.4%) | 1351 (24.2%) | 73 (30.7%) | 0.027 |
LVEF (%) | 33 (30–45) | 33 (30–45) | 35 (28–55) | 0.087 |
Cardiomyopathy | 0.006 | |||
Ischemic | 1996 (39.0%) | 1928 (39.3%) | 68 (31.5%) | |
Non-ischemic None | 1849 (36.1%) 1274 (24.9%) | 1749 (35.7%) 1226 (25.0%) | 100 (46.3%) 48 (22.2%) | |
Devices | < 0.001 | |||
Single-chamber PM | 226 (3.9%) | 215 (3.8%) | 11 (4.6%) | |
Dual-chamber PM | 1273 (21.7%) | 1216 (21.7%) | 57 (23.8%) | |
Single-chamber ICD | 793 (13.5%) | 783 (13.9%) | 10 (4.2%) | |
Dual-chamber ICD | 1416 (24.2%) | 1216 (21.7%) | 17 (7.1%) | |
CRT-P | 213 (3.6%) | 193 (3.4%) | 20 (8.3%) | |
CRT-D | 1932 (33.0%) | 1807 (32.2%) | 125 (52.1%) | |
Comorbidities | ||||
Hypertension | 3336 (63.8%) | 3189 (63.7%) | 147 (67.4%) | 0.29 |
Diabetes | 1353(26.6%) | 1293 (26.5%) | 60 (27.6%) | 0.77 |
Stroke/TIA | 196 (3.9%) | 190 (3.9%) | 6 (2.8%) | 0.48 |
Renal insufficiency | 665 (13.1%) | 626 (12.9%) | 39 (17.9%) | 0.043 |
History of AF | 1571 (30.5%) | 1485 (30.1%) | 86 (38.2%) | 0.012 |
History of VF | 260 (5.1%) | 255 (5.3%) | 5 (2.3%) | 0.069 |
History of VT | 497 (9.8%) | 485 (10.0%) | 12 (5.5%) | 0.036 |
