Age-related disparities in clinical characteristics and outcomes of patients with severe fever with thrombocytopenia syndrome

Background and aim The exploration of age-related clinical characteristics and prognosis of severe fever with thrombocytopenia syndrome (SFTS) has not been extensively addressed in current research. This study aimed to analyze the differences in clinical features and outcomes of SFTS patients across various age groups. Methods Patients were assigned to four groups: those aged ≤ 54 years, those aged 55–64 years, those aged 65–74 years, and those aged ≥ 75 years. Then, their clinical data were compared. Results A total of 253 patients diagnosed with SFTS were retrospectively included. Compared with patients aged  Conclusion Age significantly influences the clinical features and prognosis of patients, and age ≥ 65 years is associated with adverse outcomes in patients with SFTS.