Evidence map›Paper›PMID 38770742›Full record

ArticleEuropean journal of neurology2024

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

David García-Azorín, Laura Santana-López, Ana Ordax-Díez, José Eugenio Lozano-Alonso, Diego Macias Saint-Gerons, Yésica González-Osorio, Silvia Rojo-Rello, José M Eiros, Javier Sánchez-Martínez, Álvaro Sierra-Mencía and 3 more

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Article in European journal of neurology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

David García-AzorínDepartment of Medicine, Faculty of Medicine, Universidad de Valladolid, Valladolid, Spain.ORCID 0000-0002-3132-1064
Laura Santana-LópezDepartment of Medicine, Faculty of Medicine, Universidad de Valladolid, Valladolid, Spain.
Ana Ordax-DíezDirección General de Salud Pública e Investigación, Desarrollo e Innovación, Gerencia Regional de Salud, Junta de Castilla y Leon, Valladolid, Spain.
José Eugenio Lozano-AlonsoDirección General de Salud Pública e Investigación, Desarrollo e Innovación, Gerencia Regional de Salud, Junta de Castilla y Leon, Valladolid, Spain.
Diego Macias Saint-GeronsDepartment of Medicine, University of Valencia, Instituto de Investigación Sanitaria de Valencia (INCLIVA) Health Research Institute and Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Valencia, Spain.ORCID 0000-0002-2572-2160
Yésica González-OsorioHeadache Unit, Department of Neurology, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.
Silvia Rojo-RelloDepartment of Microbiology, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.
José M EirosDepartment of Microbiology, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.ORCID 0000-0002-5357-6340
Javier Sánchez-MartínezNational Influenza Center, Valladolid, Spain.ORCID 0000-0002-9933-9332
Álvaro Sierra-MencíaDepartment of Medicine, Faculty of Medicine, Universidad de Valladolid, Valladolid, Spain.ORCID 0000-0002-0022-6064
Andrea Recio-GarcíaDepartment of Medicine, Faculty of Medicine, Universidad de Valladolid, Valladolid, Spain.
Ángel Luis Guerrero-PeralDepartment of Medicine, Faculty of Medicine, Universidad de Valladolid, Valladolid, Spain.ORCID 0000-0001-7493-6002
Ivan Sanz-MuñozDepartment of Microbiology, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.ORCID 0000-0003-4725-6663

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeInfluenza 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.

methodsAll 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, vaccination status, and influenza type/subtype/lineage.

resultsDuring the study period, 8171 patients were eligible. The incidence of headache in the context of influenza varied between 0.24 cases per 1000 patients (season 2020-2021) and 21.69 cases per 1000 patients (season 2017-2018). The prevalence of headache was 66.1% (95% CI = 65.1%-67.1%), varying between 49.6% (season 2021-2022) and 80.1% (season 2010-2011). The prevalence of headache was higher in women (67.9% vs. 65.7%, p = 0.03) and higher in patients between 15 and 65 years old. Headache was more prevalent in patients infected with B subtypes than A subtypes (68.7% vs. 56.9%, p < 0.001). There were no notable differences regarding vaccination status or microbiological confirmation of the infection.

conclusionsHeadache is a common symptom in patients with influenza, with a prevalence higher than that observed in other viral infections.

Indexed as

HeadacheInfluenza, HumanAdolescentAdultAgedAged, 80 and overChildChild, PreschoolFemaleHumansIncidenceInfantMaleMiddle AgedPrevalenceYoung Adultepidemiologyheadache disordersinfectionsmigrainevirus diseases

Identifiers

PMID38770742
PMCPMC11236060

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.