June 1, 1996Circulation
Influence of Comorbidity on the Outcome of Patients Treated for Out-of-Hospital Ventricular Fibrillation
Key result
Prearrest comorbidity is strongly linked to worse survival after out-of-hospital ventricular fibrillation.
- P=.004
- n=282
Why the study?
An association of prearrest comorbidity with outcome after out-of-hospital ventricular fibrillation has not been systematically evaluated.
Does prearrest comorbidity predict survival in victims of out-of-hospital ventricular fibrillation?
Population
282 victims of out-of-hospital ventricular fibrillation
Comparison
Comorbidity index based on chronic conditions and recent symptoms
Design
Cohort study
Authors
Discussion
Loading...
Member takes
Implication
Prearrest comorbidity was associated with out-of-hospital VF survival; hypothesis-generating and should not yet change practice.
Study Design
Type
Cohort (n=282)
Structured PICO
Does prearrest comorbidity predict survival in victims of out-of-hospital ventricular fibrillation?
P
Population
282 victims of out-of-hospital ventricular fibrillation evaluated for the association of prearrest comorbidity with survival.
E
Exposure
Comorbidity index (constructed from histories of chronic conditions and recent symptoms)
O
Outcome
Survival/outcome after out-of-hospital ventricular fibrillationhard clinical
Main Result
p-value: p=.004
Prearrest comorbidity is a significant predictor of survival following out-of-hospital ventricular fibrillation, though much of the variability in survival remains unexplained.
Limitations
- Most of the statistical variability in predicting survival remains unexplained when considering comorbidity in conjunction with previously identified predictors.
Cite This Study
Hallstrom et al. (1996) conducted a cohort in Out-of-hospital ventricular fibrillation (n=282). Prearrest comorbidity was evaluated on Survival (p=.004). Prearrest comorbidity was strongly associated with survival outcomes in victims of out-of-hospital ventricular fibrillation (P=0.004).