Table 2.
Patient Characteristics by Treatment Arm
| Characteristic* | Hypothermia (n=259) | Control (n=249) | P Value* |
|---|---|---|---|
| Age, y | 61±15 | 60±15 | 0.79 |
| Time from call to first unit arrival, min | 5.3±2.2 | 5.0±1.6 | 0.15 |
| Men (%) | 183 (71) | 178 (72) | 0.84 |
| Ventricular fibrillation (%) | 183 (71) | 187 (75) | 0.26 |
| Bystander cardiopulmonary resuscitation (%) | 155 (60) | 157 (63) | 0.43 |
| Witnessed arrest (%) | 205 (79) | 187 (75) | 0.556 |
| Neurological status at discharge (%) | 0.55 | ||
| CPC 1 | 161 (62.2) | 169 (67.9) | |
| CPC 2 | 64 (24.7) | 52 (20.9) | |
| CPC 3 | 11 (4.2) | 10 (4.0) | |
| CPC 4 | 16 (6.2) | 14 (5.6) | |
| Disabled, severity unknown | 2 (0.8) | 0 (0.0) | |
| Alive, no record | 5 (1.9) | 4 (1.6) |
CPC indicates Cerebral Performance Category.
*
Continuous measures provide mean (SD) and dichotomous measures provide number (percentage).
*
P value based on analysis of variance for continuous variables or chi‐square for dichotomous variables.