Predictors of in-hospital mortality following hypoxic-ischemic brain injury: a population-based study
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abstract
Objective: To identify predictors of in-hospital mortality following Hypoxic-Ischemic Brain Injury (HIBI) using the Anderson Behavioral Model.Design and Setting: Population based retrospective cohort study in Ontario, Canada with data collected between 1 April 2002 and 31 March 2017.Patients: Adult patients aged 20 years and older with HIBI-related acute care admission were identified in the health administrative data. Multivariable cox proportional hazard regression models were used to identify predisposing, need and enabling factors that predict in-hospital mortality.Results: Of the 7492 patients admitted to acute care with HIBI, the in-hospital mortality rate was 71%. The predisposing factors associated with mortality were female sex (HR, 1.16; 95% CI, 1.10-1.23) and older age (65-79 vs. 20-34: HR, 1.17; 95% CI, 1.02-1.35). The need factors associated with mortality were the presence of COPD (HR, 1.10; 95% CI, 1.02-1.17), psychiatric illness (HR, 1.13; 95% CI, 1.05-1.20) injury due to cardiac illness (HR, 1.19; 95% CI, 1.12-1.26) and longer emergency department length of stay. Having spending any time in an alternate level of care and the application of tracheotomy procedures were found to reduce mortality.Conclusions: The acute/critical care centers need to consider these findings to adopt prevention strategies targeting reduced in-hospital mortality.
