Evidence map›Paper›PMID 34103319›Full record

ArticleBMJ open2021

Bidirectional association between migraine and rheumatoid arthritis: two longitudinal follow-up studies with a national sample cohort.

Yoo Hwan Kim, Jung Woo Lee, Yerim Kim, Jong Seok Bae, Yeo Jin Kim, Chanyang Min, Hyo Geun Choi

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

9 citing papers in PubMed, 14 citations in OpenAlex.

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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

7 authors at 4 institutions in 1 country.

Yoo Hwan KimDepartment of Neurology, Hallym University Sacred Heart Hospital, Anyang, The Republic of Korea.ORCID 0000-0002-9532-5769
Jung Woo LeeDepartment of Orthopedic Surgery, Yonsei University Wonju College of Medicine, Wonju, The Republic of Korea.
Yerim KimDepartment of Neurology, Kangdong Sacred Heart Hospital, Seoul, The Republic of Korea.
Jong Seok BaeDepartment of Neurology, Kangdong Sacred Heart Hospital, Seoul, The Republic of Korea.
Yeo Jin KimDepartment of Neurology, Chuncheon Sacred Heart Hospital, Chuncheon, The Republic of Korea.
Chanyang MinHallym Data Science Laboratory, Hallym University College of Medicine, Anyang, The Republic of Korea.
Hyo Geun ChoiHallym Data Science Laboratory, Hallym University College of Medicine, Anyang, The Republic of Korea pupen@naver.com.ORCID 0000-0003-1655-9549
Kangdong Sacred Heart Hospital · KRHallym University · KRSeoul National University · KRYonsei University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the bidirectional association between migraine and rheumatoid arthritis (RA).

designTwo longitudinal follow-up studies.

settingData collected from a national cohort between 2002 and 2013 by the Korean National Health Insurance Service-Health Screening Cohort.

participantsIn cohort 1, matching resulted in the inclusion of 31 589 migraine patients and 126 356 control I participants. In cohort 2, matching resulted in the inclusion of 9287 RA patients and 37 148 control II participants. PRIMARY AND SECONDARY OUTCOME MEASURES: The HRs for RA in patients with migraine (cohort 1) and migraine in patients with RA (cohort 2) were analysed using stratified Cox proportional hazard models after adjusting for autoimmune disease, Charlson Comorbidity Index scores without rheumatoid diseases, obesity (body mass index), smoking and history of alcohol intake. Subgroup analyses stratified by age, sex, income and region of residence were also performed.

resultsThe incidence of RA in the migraine group (2.0% (640/31 589)) was higher than that in the control I group (1.4% (1709/126 356), p<0.001). The adjusted HR for RA in the migraine without aura group was 1.48 (95% CIs=1.34 to 1.63, p<0.001).The incidence of migraine in the RA group (6.4% (590/9287)) was higher than that in the control II group (4.6% (1721/37 148), p<0.001). The adjusted HR for migraine without aura in the RA group was 1.35 (95% CI=1.23 to 1.49, p<0.001).

conclusionMigraine increases the risk of RA, and RA is also associated with an increased risk of migraine.

Indexed as

Arthritis, RheumatoidMigraine DisordersFollow-Up StudiesHumansIncidenceLongitudinal StudiesProportional Hazards ModelsRisk Factorsmigraineneurologyrheumatology

Identifiers

PMID34103319
PMCPMC8190043
OpenAlexW3168979351

What OpenQuestion holds

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LicenceCC BY-NC
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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.