Evidence map›Paper›PMID 34327787›Full record

SynthesisEuropean journal of neurology2021

Headache as an acute and post-COVID-19 symptom in COVID-19 survivors: A meta-analysis of the current literature.

César Fernández-de-Las-Peñas, Marcos Navarro-Santana, Víctor Gómez-Mayordomo, María L Cuadrado, David García-Azorín, Lars Arendt-Nielsen, Gustavo Plaza-Manzano

Open access · hybridAbstract readMeta-Analysis
In one paragraph

Synthesis in European journal of neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed, 6 pooled it
14.7field-weighted citation impact, top 1% of its field
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

75 citing papers in PubMed, 6 syntheses or guidelines pooled it, 149 citations in OpenAlex.

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15 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 5 institutions in 2 countries.

César Fernández-de-Las-PeñasDepartment of Physical Therapy, Occupational Therapy, Physical Medicine and Rehabilitation, Universidad Rey Juan Carlos (URJC), Madrid, Spain.ORCID 0000-0003-3772-9690
Marcos Navarro-SantanaDepartment of Radiology, Rehabilitation and Physiotherapy, Universidad Complutense de Madrid, Madrid, Spain.
Víctor Gómez-MayordomoDepartment of Neurology, Hospital Clínico San Carlos, Madrid, Spain.ORCID 0000-0001-9343-8439
María L CuadradoDepartment of Neurology, Hospital Clínico San Carlos, Madrid, Spain.
David García-AzorínHeadache Unit, Department of Neurology, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.ORCID 0000-0002-3132-1064
Lars Arendt-NielsenCenter for Neuroplasticity and Pain (CNAP), SMI, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark.
Gustavo Plaza-ManzanoDepartment of Radiology, Rehabilitation and Physiotherapy, Universidad Complutense de Madrid, Madrid, Spain.
Universidad Complutense de Madrid · ESAalborg University Hospital · DKHospital Clínico San Carlos · ESHospital Clínico Universitario de Valladolid · ESUniversidad Rey Juan Carlos · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHeadache is identified as a common post-COVID sequela experienced by COVID-19 survivors. The aim of this pooled analysis was to synthesize the prevalence of post-COVID headache in hospitalized and non-hospitalized patients recovering from SARS-CoV-2 infection.

methodsMEDLINE, CINAHL, PubMed, EMBASE, and Web of Science databases, as well as medRxiv and bioRxiv preprint servers, were searched up to 31 May 2021. Studies or preprints providing data on post-COVID headache were included. The methodological quality of the studies was assessed using the Newcastle-Ottawa Scale. Random effects models were used for meta-analytical pooled prevalence of post-COVID headache. Data synthesis was categorized at hospital admission/symptoms' onset, and at 30, 60, 90, and ≥180 days afterwards.

resultsFrom 9573 studies identified, 28 peer-reviewed studies and 7 preprints were included. The sample was 28,438 COVID-19 survivors (12,307 females; mean age: 46.6, SD: 17.45 years). The methodological quality was high in 45% of the studies. The overall prevalence of post-COVID headache was 47.1% (95% CI 35.8-58.6) at onset or hospital admission, 10.2% (95% CI 5.4-18.5) at 30 days, 16.5% (95% CI 5.6-39.7) at 60 days, 10.6% (95% CI 4.7-22.3) at 90 days, and 8.4% (95% CI 4.6-14.8) at ≥180 days after onset/hospital discharge. Headache as a symptom at the acute phase was more prevalent in non-hospitalized (57.97%) than in hospitalized (31.11%) patients. Time trend analysis showed a decreased prevalence from the acute symptoms' onset to all post-COVID follow-up periods which was maintained afterwards.

conclusionThis meta-analysis found that the prevalence of post-COVID headache ranged from 8% to 15% during the first 6 months after SARS-CoV-2 infection.

Indexed as

COVID-19AdultFemaleHeadacheHumansMaleMiddle AgedPrevalenceSARS-CoV-2SurvivorsCOVID-19headachemeta-analysispost-COVIDprevalence

Identifiers

PMID34327787
PMCPMC8444899
OpenAlexW3186580248

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.