Incidence and prevalence of headache in influenza: A 2010-2021 surveillance-based study.

ABSTRACT:

Background and purpose

Influenza is a common cause of acute respiratory infection, with headache being one of the symptoms included in the European Commission case definition. The prevalence of headache as a symptom of influenza remains unknown. We aimed to describe the incidence and prevalence of headache in patients with influenza.

Methods

All consecutive patients who met the definition criteria of influenza-like illness during the influenza seasons 2010-2011 through 2021-2022 were included. The seasonal cumulative incidence of influenza per 1000 patients at risk and the prevalence of headache as an influenza symptom were calculated, including the 95% confidence intervals (CIs). Subgroup analyses were done based on patients' sex, age group, microbiological confirmation, va

SUBMITTER: Garcia-Azorin D 

PROVIDER: S-EPMC11236060 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature