Evidence map›Paper›PMID 33835743›Full record

ArticleJournal of clinical neurology (Seoul, Korea)2021

Smoking History and Clinical Features of Cluster Headache: Results from the Korean Cluster Headache Registry.

Pil Wook Chung, Byung Su Kim, Jeong Wook Park, Jong Hee Sohn, Mi Ji Lee, Byung Kun Kim, Min Kyung Chu, Jin Young Ahn, Yun Ju Choi, Tae Jin Song and 10 more

Open access · diamondAbstract read
In one paragraph

Article in Journal of clinical neurology (Seoul, Korea), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 7% 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, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Smoking and cluster headache: clinical, gender, and treatment insights from a cross-sectional cluster analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Article
  5. Article
  6. Pain Lateralization in Cluster Headache and Associated Clinical Factors.Journal of clinical neurology (Seoul, Korea) · 2025
    Article
  7. Article
  8. Exploring the Bidirectional Causal Pathways Between Smoking Behaviors and Headache: A Mendelian Randomization Study.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2024
    Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Oxygen Therapy in Cluster Headache, Migraine, and Other Headache Disorders.Journal of clinical neurology (Seoul, Korea) · 2022
    Review
  16. Article
  17. Article
  18. Review
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

20 authors at 16 institutions in 1 country.

Pil Wook ChungDepartment of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-8726-4812
Byung Su KimDepartment of Neurology, Bundang Jesaeng General Hospital, Daejin Medical Center, Seongnam, Korea.ORCID https://orcid.org/0000-0003-4014-9400
Jeong Wook ParkDepartment of Neurology, Uijeongbu St. Mary's Hospital, Uijeongbu, Korea.ORCID https://orcid.org/0000-0001-5360-2951
Jong Hee SohnDepartment of Neurology, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon, Korea.ORCID https://orcid.org/0000-0003-2656-9222
Mi Ji LeeDepartment of Neurology, Neuroscience Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0003-1364-1969
Byung Kun KimDepartment of Neurology, Nowon Eulji Medical Center, Eulji University, Seoul, Korea.ORCID https://orcid.org/0000-0003-1053-4682
Min Kyung ChuDepartment of Neurology, Severance Hospital, Seoul, Korea.ORCID https://orcid.org/0000-0001-6221-1346
Jin Young AhnDepartment of Neurology, Seoul Medical Center, Seoul, Korea.
Yun Ju ChoiDepartment of Neurology, Dr. Choi's Neurology Clinic, Jeonju, Korea.
Tae Jin SongDepartment of Neurology, Ewha Womans University School of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-9937-762X
Dae Woong BaeDepartment of Neurology, College of Medicine, The Catholic University of Korea, Suwon, Korea.
Daeyoung KimDepartment of Neurology, Chungnam National University College of Medicine, Daejeon, Korea.ORCID https://orcid.org/0000-0001-9056-0017
Jae Moon KimDepartment of Neurology, Chungnam National University College of Medicine, Daejeon, Korea.ORCID https://orcid.org/0000-0002-5035-9877
Soo Kyoung KimDepartment of Neurology, Gyeongsang National University College of Medicine, Jinju, Korea.ORCID https://orcid.org/0000-0002-7230-4033
Kwang Yeol ParkDepartment of Neurology, Chung-Ang University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0003-4570-3538
Jae Myun ChungDepartment of Neurology, Inje University College of Medicine, Seoul, Korea.
Heui Soo MoonDepartment of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-6847-497X
Kyungmi OhDepartment of Neurology, Korea University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-7304-0308
Chin Sang ChungDepartment of Neurology, Neuroscience Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-0049-558X
Soo Jin ChoDepartment of Neurology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea. dowonc@naver.com.ORCID https://orcid.org/0000-0002-4053-3763
Chungnam National University · KREulji University · KRKangbuk Samsung Hospital · KRSamsung Medical Center · KRCatholic University of Korea · KRChung-Ang University · KREwha Womans University · KRGyeongsang National University · KRHallym University · KRHallym University Dongtan Sacred Heart Hospital · KRInje University · KRJeonju University · KRKorea University · KRSeoul Medical Center · KRSeverance Hospital · KRThe Catholic University of Korea Uijeongbu St. Mary's Hospital · KR

Funding

Korean Headache SocietyKorean Neurological Association KNA-16-MI-09
6 · The paper itself

Abstract

background and purposeEpidemiologic data suggest that cluster headache (CH) is significantly associated with cigarette smoking. The aim of this study was to determine differences in features between patients with a smoking history and those who are never-smokers, using data from a prospective multicenter registry.

methodsData used in this study were obtained from the Korean Cluster Headache Registry that collected data from consecutive patients diagnosed with CH. We compared clinical and demographic features between ever-smokers (current or former smokers) and never-smokers.

resultsThis study enrolled 250 patients who were diagnosed with CH, of which 152 (60.8%) were ever-smokers and 98 (39.2%) were never-smokers. The age at CH onset was significantly lower in the never-smoker group than in the ever-smoker group [27.1±12.9 years vs. 30.6±10.9 years (mean±standard deviation),

conclusionsMost of the clinical features did not differ significantly between patients with a smoking history and never-smokers. However, the age at CH onset, sex ratio, and seasonal rhythmicity were significantly associated with smoking history.

Indexed as

cluster headachesex differencessmoking

Identifiers

PMID33835743
PMCPMC8053542
OpenAlexW3145494446

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.