Table 1 Baseline patient characteristics stratified by type of ICD
Type of ICD | |||||||
|---|---|---|---|---|---|---|---|
Characteristics | Single-chamber ICD | Dual-chamber ICD | CRT-D | ||||
(n = 2,109) | (n = 1,186) | (n = 681) | |||||
Age (years), mean (SD) | 56 | (±14) | 57 | (±14) | 60 | (±12) | |
Age group, n (%) | |||||||
<10 years | 6 | (0.3) | 3 | (0.3) | 2 | (0.3) | |
10 to 49 years | 580 | (27.5) | 321 | (27.1) | 127 | (18.7) | |
50 to 59 years | 580 | (27.5) | 310 | (26.1) | 189 | (27.8) | |
60 to 69 years | 587 | (27.8) | 362 | (30.5) | 219 | (32.2) | |
70 years or more | 356 | (16.9) | 190 | (16.0) | 143 | (21.0) | |
Sex, n (%) | |||||||
Female | 626 | (29.7) | 365 | (30.8) | 176 | (25.8) | |
Male | 1482 | (70.3) | 821 | (69.2) | 505 | (74.2) | |
Arrhythmia, n (%) | |||||||
Ventricular Flutter or Fibrillation | 407 | (19.3) | 356 | (30.0) | 13 | (1.9) | |
Ventricular Tachycardia | 914 | (43.3) | 618 | (52.1) | 242 | (35.5) | |
Supraventricular Tachycardia | 514 | (24.4) | 101 | (8.5) | 2 | (0.3) | |
Hospital location (state), n (%) | |||||||
São Paulo | 1069 | (50.7) | 703 | (59.3) | 486 | (71.4) | |
Other | 1040 | (49.3) | 483 | (40.7) | 195 | (28.6) | |
Category of hospital, n (%) | |||||||
Charity Hospital | 814 | (38.6) | 587 | (49.5) | 377 | (55.4) | |
Private Hospital (non-philanthropic) | 245 | (11.6) | 175 | (14.8) | 38 | (5.6) | |
Public Hospital | 1050 | (49.8) | 424 | (35.8) | 266 | (39.1) | |
Implant technique – mini-thoracotomy, n (%) | 0 | 0 | 227 | (38.0) | |||