Table 1 Patient Demographics
| Â | PREPARE Patients (N = 700) | MIRACLE ICD Patients (N = 415) | EMPIRIC Patients (N = 276) | Combined Control (MIRACLE ICD and EMPIRIC) Patients (N = 691) |
|---|---|---|---|---|
Gender (N, %) | Â | Â | Â | Â |
   Male | 555 (79.3%) | 310 (74.7%) | 222 (80.4%) | 532 (77%) |
   Female | 145 (20.7%) | 105 (25.3%) | 54 (19.6%) | 159 (23%) |
Age (years) | Â | Â | Â | Â |
   Mean ± Standard Deviation | 67.4 ± 12.2 | 65.4 ± 11.5 | 65.6 ± 12 | 65.5 ± 11.7 |
   Median | 68.7 | 67.9 | 67.3 | 67.7 |
   Minimum – Maximum | 19.2 – 92.2 | 31 – 89 | 23.3 – 91.4 | 23.3 – 91.4 |
   n (%) | 700 (100%) | 415 (100%) | 276 (100%) | 691 (100%) |
Baseline Left Ventricular Ejection Fraction (%) | Â | Â | Â | Â |
   Mean ± Standard Deviation | 27.7 ± 10.5 | 21 ± 6.8 | 30.3 ± 11 | 24.7 ± 9.8 |
   Median | 25 | 20 | 30 | 25 |
   Minimum – Maximum | 5 – 80 | 6 – 35 | 5 – 70 | 5 – 70 |
   n (%) | 691 (98.7%) | 413 (99.5%) | 273 (98.9%) | 686 (99.3%) |
Baseline New York Heart Association Classification (N, %) | Â | Â | Â | Â |
   Class I | 117 (16.7%) | 0 (0%) | 36 (13%) | 36 (5.2%) |
   Class II | 297 (42.4%) | 137 (33%) | 102 (37%) | 239 (34.6%) |
   Class III | 268 (38.3%) | 237 (57.1%) | 36 (13%) | 273 (39.5%) |
   Class IV | 18 (2.6%) | 41 (9.9%) | 3 (1.1%) | 44 (6.4%) |
   Not Collected* | 0 (0%) | 0 (0%) | 99 (35.9%) | 99 (14.3%) |
Ischemic Cardiomyopathy | 488 (69.7%) | 238 (57.5%) | 155 (56.2%) | 393 (57.0%) |
Myocardial Infarction (N, %) | 421 (60.1%) | 193 (46.6%) | 192 (69.6%) | 385 (55.8%) |