Additionally, there is a strong trend with diagnosis of hypertensive disease of pregnancy and higher rate of mortality from aneurysmal subarachnoid hemorrhage.
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Aneurysmal subarachnoid hemorrhage in pregnancy: National trends of treatment, predictors, and outcomes.
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However, we are utilizing a retrospective cohort and because of the study design which demonstrates likely no difference in between the effect size for mortality and functional outcome between the studied cohort post hoc power calculation would not likely be helpful be helpful.(5-7) Specially given the post hoc power analysis is to identify that the “non-significant” hypothesis test failed to achieve significance as it was not powerful enough and requiring higher degrees of freedom and a larger sample size.