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Use of Statins and Outcomes in Intracerebral Hemorrhage Patients
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Abstract
Background and Purpose—Statin
use may be associated with improved outcome in intracerebral hemorrhage
patients. However, the topic remains controversial. Our analysis
examined the effect of prior, continued, or new statin use on
intracerebral hemorrhage outcomes using the ERICH (Ethnic/Racial
Variations of Intracerebral Hemorrhage) data set.
Methods—We
analyzed ERICH (a multicenter study designed to examine ethnic
variations in the risk, presentation, and outcomes of intracerebral
hemorrhage) to explore the association of statin use and hematoma
growth, mortality, and 3-month disability. We computed subset analyses
with respect to 3 statin categories (prior, continued, or new use).
Results—Two
thousand four hundred and fifty-seven enrolled cases (mean age, 62
years; 42% females) had complete data on mortality and 3-month
disability (modified Rankin Scale). Among those, 1093 cases were on
statins (prior, n=268; continued, n=423; new, n=402). Overall, statin
use was associated with reduced mortality and disability without any
effect on hematoma growth. This association was primarily driven by
continued/new statin use. A multivariate analysis adjusted for age and
major predictors for poor outcome showed that continued/new statins
users had good outcomes compared with prior users. However, statins may
have been continued/started more frequently among less severe patients.
When a propensity score was developed based on factors that could
influence a physician’s decision in prescribing statins and used as a
covariate, continued/new statin use was no longer a significant
predictor of good outcome.
Conclusions—Although
statin use, especially continued/new use, was associated with improved
intracerebral hemorrhage outcomes, this effect may merely reflect the
physician’s view of a patient’s prognosis rather than a predictor of
survival.
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