Comparison of 30-day survival calculation pre-data and post-data linkage
| 30-day survival | |||
| Dataset 1: OHCAO data | Dataset 2: linked OHCAO and ONS data | ||
| Yes | 12 (0.4%) | Yes | 290 (9.3%) |
| No | 1670 (53.5%) | No | 2566 (82.2%) |
| Unknown | 1438 (46.1%) | Unknown | 264 (8.5%) |
| Total | 3120 (100%) | Total | 3120 (100%) |
OHCAO, Out-of-Hospital Cardiac Arrest Outcomes; ONS, Office for National Statistics.