Seasonal and Temperature-Related Variation in Subarachnoid Hemorrhage Hospital Admissions: A Nationwide Ecological Time-Series Analysis in Brazil, 2020-2024.
BACKGROUND Subarachnoid hemorrhage (SAH) carries high mortality worldwide. Seasonal patterns have been documented in temperate regions, but evidence from tropical and subtropical populations remains limited. We investigated associations between meteorological variables and SAH hospital admissions across diverse climate...