Declining Admission and Mortality Rates for Subarachnoid Hemorrhage in Canada between 2004 and 2015

Abstract

Background and Purpose - The purpose of this study was to assess recent trends in the admission and mortality rates for subarachnoid hemorrhage in Canada. Methods - This retrospective cross-sectional study was based on data retrieved from the Canadian Institute for Health Information for all patients diagnosed with subarachnoid hemorrhage in Canada between 2004 and 2015. Adjusted admission rate, in-hospital mortality rates, and discharge disposition were calculated. Results - A total of 19 765 patients were diagnosed with subarachnoid hemorrhage between 2004 and 2015. The mean age was 58.1 years, and 40.3% were men. The annual hospitalization rate was 6.34 per 100 000 person-years, declining by -0.67% annually. In-hospital mortality rate was 21.5%. Conclusions - The Canadian subarachnoid hemorrhage admission and mortality rates are lower than previously reported, with a declining trend.