RT Journal Article
SR Electronic
T1 Cause-specific mortality of 1-year survivors of subarachnoid hemorrhage
JF Neurology
JO Neurology
FD Lippincott Williams & Wilkins
SP 481
OP 486
DO 10.1212/WNL.0b013e31827f0fb5
VO 80
IS 5
A1 Korja, Miikka
A1 Silventoinen, Karri
A1 Laatikainen, Tiina
A1 Jousilahti, Pekka
A1 Salomaa, Veikko
A1 Kaprio, Jaakko
YR 2013
UL http://n.neurology.org/content/80/5/481.abstract
AB Objective: To assess long-term, cause-specific mortality rates and rate ratios of the patients alive at 1 year after subarachnoid hemorrhage (SAH).Methods: The population-based, prospective, cohort study with a nested case-control design consisted of 64,349 persons (aged 25–74 years at enrollment) who participated in the National FINRISK Study between 1972 and 2007. Four hundred thirty-seven SAH cases, 233 one-year SAH survivors, and their matched intrinsic controls were identified and followed up until the end of 2009 through the nationwide Finnish Causes of Death Register. All-cause mortality rates and rate ratios of the 1-year SAH survivors and controls were the main outcome measures.Results: Eighty-eight (37.8%) of 233 one-year SAH survivors died during the total follow-up time of 2,487 person-years (median 8.6 years, range 0.1–35.8 years). The 1-year SAH survivors had a hazard ratio of 1.96 (95% confidence interval 1.57–2.47) for death compared with the matched general population with 10 controls for each SAH survivor. One-year SAH survivors had up to 31 additional deaths per 1,000 person-years compared with controls with minimal cerebrovascular risk factors. The higher long-term risk of death among SAH survivors was attributed solely to cerebrovascular diseases, and most important modifiable risk factors for death were smoking, high systolic blood pressure (≥159 mm Hg), and high cholesterol levels (≥7.07 mmol/L).Conclusion: One-year SAH survivors have excess mortality, which is attributed to an exceptional risk of deadly cerebrovascular events. Aggressive post-SAH cerebrovascular risk factor intervention strategies are highly warranted.BP=blood pressure; CI=confidence interval; HR=hazard ratio; ICD=International Classification of Diseases; SAH=subarachnoid hemorrhage; SMR=standardized mortality ratio