Table 3. Pre-Hospital and In-Hospital Survival.
* Model-adjusted rates of survival to hospital admission and in-hospital survival (among those surviving to hospital admission) are compared against the reference period, 2005-2006.
| Year | Unadjusted Rate | Adjusted Rate | Adjusted Rate Ratio (95% CI) | P value for trend |
|---|---|---|---|---|
| Pre-Hospital Survival | 0.001 | |||
| 2005-2006 | 14.3% | Reference | Reference | |
| 2007 | 22.2% | 17.9% | 1.25 (1.14-1.37) | |
| 2008 | 26.1% | 20.0% | 1.40 (1.23-1.59) | |
| 2009 | 27.0% | 20.8% | 1.45 (1.27-1.65) | |
| 2010 | 27.1% | 20.7% | 1.45 (1.28-1.64) | |
| 2011 | 26.2% | 20.5% | 1.43 (1.27-1.61) | |
| 2012 | 26.4% | 20.8% | 1.45 (1.28-1.65) | |
| In-Hospital Survival | 0.015 | |||
| 2005-2006 | 34.6% | Reference | Reference | |
| 2007 | 35.6% | 35.9% | 1.02 (1.00-1.04) | |
| 2008 | 32.1% | 35.6% | 1.04 (1.01-1.07) | |
| 2009 | 35.5% | 37.2% | 1.06 (1.02-1.11) | |
| 2010 | 36.9% | 39.3% | 1.08 (1.01-1.15) | |
| 2011 | 39.4% | 40.7% | 1.10 (1.02-1.20) | |
| 2012 | 37.2% | 39.5% | 1.12 (1.02-1.24) | |
*
Rates are adjusted for EMS agency and temporal changes in age, sex, race/ethnicity initial cardiac arrest rhythm, location of arrest, and whether the arrest was witnessed.