HOSPITAL MORTALITY AND COSTS OF POST-STROKE PATIENTS IN THE BRAZILIAN NATIONAL HEALTH SYSTEM: A TIME SERIES WITH ANALYSIS OF ASSOCIATED FACTORS
Stroke; Hospital mortality; Brazilian National Health System; Hospital costs; Time trend.
Stroke is one of the leading causes of mortality and disability in Brazil, with significant clinical, social, and economic impact. This study aimed to analyze hospital mortality rates and inpatient costs related to stroke within the Brazilian National Health System (Sistema Único de Saúde - SUS) from 2018 to 2023, considering sociodemographic, clinical, and healthcare variables. This is an observational time series study based on secondary data extracted from the Hospital Information System (SIHSUS). A total of 1,321,282 hospitalizations for stroke (ICD-10: I60–I64) in patients aged 18 years or older were included. Results revealed a 22% increase in hospitalizations and a 54.5% rise in total stroke-related costs over the analyzed period, while the hospital mortality rate decreased, reaching 15.3% in 2023. Mortality was statistically associated with older age, male sex, Black or Brown race/color, residence in rural areas and in the North and Northeast regions, longer hospital stays, admission to intensive care units (ICU), and stroke type (especially hemorrhagic). Regarding costs, higher average expenses were observed in hospitalizations of patients who died, those admitted to ICUs, with longer hospital stays, and with a diagnosis of hemorrhagic stroke. Regional differences were also significant, with the highest average costs recorded in the South and Central-West regions. These findings highlight inequalities in healthcare profiles and emphasize the need for public policies aimed at equitable access, strengthening healthcare networks, and rational allocation of SUS resources. The study suggests integrating clinical, functional, and hospital data, as well as investigating post-discharge costs, to support comprehensive prevention, care, and rehabilitation strategies.