Table.
Potential increases in survival rates attainable by reducing ambulance response times derived from two models with 5280 arrests
| No of survivors | 90% of responses ⩽8 min
|
90% of responses ⩽5 min
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Model A*
|
Model B†
|
Model A*
|
Model B†
|
||||||||
| No (%) | 95% CI (%) | No (%) | 95% CI (%) | No (%) | 95% CI (%) | No (%) | 95% CI (%) | ||||
| Observed | 327 (6.2) | — | 327 (6.2) | — | 327 (6.2) | — | 327 (6.2) | — | |||
| Additional | 95 (1.8) | 1.3 to 2.3 | 116 (2.2) | 1.7 to 2.7 | 186 (3.5) | 2.4 to 4.6 | 228 (4.3) | 3.1 to 5.5 | |||
| Total | 422 (8.0) | 7.2 to 8.8 | 443 (8.4) | 7.5 to 9.3 | 513 (9.7) | 8.4 to 11.0 | 555 (10.5) | 9.1 to 11.9 | |||
*
Effect on survival of reduced response times in defibrillated patients only.
†
Effect on defibrillation of reduced response time plus effect on survival given increased probability of defibrillation.