Number of resuscitation attempts and survival rates grouped according to number of DC shocks and endotracheal intubation
| Number of shocks | Intubated | Number of attempts | Survived to discharge (%) | |
|---|---|---|---|---|
| 1–3 | Yes | 998 (35.6) | 76 (7.6)1-150 | |
| No | 1805 (64.4) | 350 (19.3) | ||
| Total | 2803 (62.3) | 426 (15.2) | ||
| 4–6 | Yes | 473 (45.9) | 33 (7.0)† | |
| No | 557 (54.1) | 63 (11.3) | ||
| Total | 1030 (22.9) | 96 (9.3) | ||
| 7 or more | Yes | 386 (57.9) | 16 (4.1)‡ | |
| No | 281 (42.1) | 30 (10.6) | ||
| Total | 667 (14.8) | 46 (6.9) | ||
| Total | 4500 | 568 (12.6) | ||
↵1-150 p<0.001; †p<0.002; ‡p<0.001 for intubated vnon-intubated.