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Background: Studies describing outcomes of subarachnoid hemorrhage (SAH) in children are sparse. This study aims to describe outcomes and determinants of outcomes in pediatric patients with SAH.

Methods: We reviewed all pediatric admissions with the primary diagnosis of SAH from the 2016-2020 National Inpatient Sample using International Classification of Disease Codes. Baseline characteristics of patients (age, gender, and associated comorbidities) were computed using descriptive statistics. Multivariable-adjusted logistic regression determined predictors of in-hospital mortality for children with SAH.

Results: 1,310 weighted hospitalizations for SAH were identified during the 5-year study period. The median age was 11.8 years (95% CI, 11.0-12.5), 54.6% were male. Seizures (34.6%), intraparenchymal hematoma (21.7%), acute ischemic stroke (6.4%), brain tumors (0.7%), and arteriovenous (AV …