In-hospital influenza vaccination is associated with reduced 1-year mortality in critical patients with chronic pulmonary disease: a real world target trial emulation

In-hospital influenza vaccination is associated with reduced 1-year mortality in critical patients with chronic pulmonary disease: a real world target trial emulation

In critically ill chronic pulmonary disease patients, receiving influenza vaccination during hospitalization reduces 1-year mortality by 12%, lowers 90-day mortality by 12%, decreases readmission risk by 13%, and reduces emergency visits by 23%, with safety non-inferior to non-vaccinated patients.