Evidence map›Paper›PMID 26957090›Full record

Observational studyThe journal of headache and pain2015

Medication overuse headache in Europe and Latin America: general demographic and clinical characteristics, referral pathways and national distribution of painkillers in a descriptive, multinational, multicenter study.

Ninett Louise Find, Rossana Terlizzi, Signe Bruun Munksgaard, Lars Bendtsen, Cristina Tassorelli, Giuseppe Nappi, Zaza Katsarava, Miguel Lainez, Maria Teresa Goicochea, Beatriz Shand and 5 more

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in The journal of headache and pain, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.6field-weighted citation impact, top 12% 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

18 citing papers in PubMed, 47 citations in OpenAlex.

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  12. Impact of COVID-19 Pandemic Lockdown on Migraine Patients in Latin America.International journal of environmental research and public health · 2023
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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

15 authors at 8 institutions in 6 countries.

Ninett Louise FindFaculty of Health Science, University of Copenhagen, Copenhagen, Denmark.
Rossana TerlizziDanish Headache Center, Neurological Department, Glostrup Hospital, Glostrup, Denmark.
Signe Bruun MunksgaardDanish Headache Center, Neurological Department, Glostrup Hospital, Glostrup, Denmark.
Lars BendtsenDanish Headache Center, Neurological Department, Glostrup Hospital, Glostrup, Denmark.
Cristina TassorelliHeadache Science Center, C. Mondino National Neurological Institute C. Mondino Foundation, Dept. of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy.
Giuseppe NappiHeadache Science Center, C. Mondino National Neurological Institute C. Mondino Foundation, Dept. of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy.
Zaza KatsaravaDepartment of Neurology, University Hospital of Essen, Essen, Germany.
Miguel LainezFoundation of the Valencian Community, University Clinical Hospital, Barcelona, Spain.
Maria Teresa GoicocheaFoundation for Combating Neurological Diseases of Childhood, Buenos Aires, Argentina.
Beatriz ShandPontificia Universidad Católica de Chile, Santiago, Chile.
Ricardo FadicPontificia Universidad Católica de Chile, Santiago, Chile.
Santiago SpadaforaUniversidad Isalud, Buenos Aires, Argentina.
Marco PaganiBioengineering and Medical Informatics Consortium, Pavia, Italy.
Rigmor JensenDanish Headache Center, Neurological Department, Glostrup Hospital, Glostrup, Denmark. rigmor.jensen@regionh.dk.
COMOESTAS Consortium
Glostrup Hospital · DKPontificia Universidad Católica de Chile · CLUniversity of Pavia · ITConsorzio di Bioingegneria e Informatica Medica · ITEssen University Hospital · DEFundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana · ESOspedale Bellaria · ITUniversidad Isalud · AR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMedication overuse headache (MOH) is a very disabling and costly disorder due to indirect costs, medication and healthcare utilization. The aim of the study was to describe general demographic and clinical characteristics of MOH, along with the national referral pathways and national painkillers distribution in several European and Latin American (LA) Countries.

methodsThis descriptive cross-sectional observational study included 669 patients with MOH referred to headache-centers in Europe and LA as a part of the COMOESTAS project. Information about acute medication and healthcare utilization were collected by extensive questionnaires, supplemented with structured patient interviews.

resultsTriptans were overused by 31 % European patients and by 6 % in LA (p < 0.001), whereas ergotamines were overused by 4 % in Europe and 72 % in LA (p < 0.001). Simple analgesics were overused by 54 % in Europe and by 33 % in LA (p < 0.001), while combination-analgesics were more equally overused (24 % in Europe and 29 % in LA). More European patients (57 %) compared with LA patients (27 %) visited general practitioners (p < 0.001), and 83 % of European patients compared to 38 % in LA consulted headache specialists (p < 0.001). A total of 20 % in Europe and 30 % in LA visited emergency rooms (p = 0.007).

conclusionThere are marked variations between LA and Europe in healthcare pathways and in acute medication overuse regarding patients with MOH. This should be considered when planning prevention campaigns against MOH.

Indexed as

Prescription Drug OveruseAdultAnalgesicsCross-Sectional StudiesErgotaminesEuropeFemaleHeadache Disorders, SecondaryHumansLatin AmericaMaleMiddle AgedTryptaminesAnalgesicsErgotaminesTryptaminesHealthcare utilizationInternational variationMedication overuse headacheOveruse of acute medication

Identifiers

PMID26957090
PMCPMC4783306
OpenAlexW2295879889

What OpenQuestion holds

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LicenceCC BY
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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.