Table 2 Summary of Overall Findings
OHCA outcomes and characteristics | Parameters | Number of studies | Pooled OR (95% CI) | P value | I2 statistic | |
|---|---|---|---|---|---|---|
Primary outcomes | Annual Incidence# | 10 | N/A |  < 0.001 | N/A | |
Case Fatality Rate# | 11 | N/A |  < 0.001 | N/A | ||
Mortality | 11 | 1.95 (1.51–2.51) | 0.0002 | 67% | ||
Secondary outcomes | Termination of Resuscitation | 5 | 2.46 (1.62–3.74) | 0.0040 | 93% | |
ROSC | 15 | 0.65 (0.55–0.77) |  < 0.0001 | 85% | ||
Survival to Hospital Admission | 10 | 0.65 (0.48–0.89) | 0.0122 | 87% | ||
Survival to Hospital Discharge | 11 | 0.52 (0.40–0.69) | 0.0004 | 67% | ||
Characteristics | Shockable Rhythm | 15 | 0.73 (0.60–0.88) | 0.0024 | 70% | |
Etiology | Medical | 9 | 0.91 (0.60–1.37) | 0.5922 | 93% | |
Traumatic | 7 | 0.68 (0.41–1.13) | 0.1108 | 70% | ||
Asphyxial | 5 | 1.17 (1.02–1.33) | 0.0317 | 0% | ||