Evidence map›Paper›PMID 32319240›Full record

ArticleJournal of clinical neurology (Seoul, Korea)2020

Effect of Sleep Quality on Headache-Related Impact in Primary Headache Disorders.

Soohyun Cho, Mi Ji Lee, Hea Ree Park, Seonwoo Kim, Eun Yeon Joo, Chin Sang Chung

Open access · diamondAbstract read
In one paragraph

Article in Journal of clinical neurology (Seoul, Korea), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 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

6 authors at 3 institutions in 1 country.

Soohyun Cho *Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-3900-3204
Mi Ji Lee *Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0003-1364-1969
Hea Ree ParkDepartment of Neurology, Ilsan Paik Hospital, Inje University, Goyang, Korea.ORCID https://orcid.org/0000-0002-7152-0754
Seonwoo KimBiostatistics Team, Samsung Biomedical Research Institute, Seoul, Korea.ORCID https://orcid.org/0000-0002-9236-560X
Eun Yeon JooDepartment of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0003-1233-959X
Chin Sang ChungDepartment of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. cspaul@naver.com.ORCID https://orcid.org/0000-0002-0049-558X
Samsung Medical Center · KRInje University Ilsan Paik Hospital · KRSamsung (South Korea) · KR

Funding

National Research Foundation of Korea 2017R1A2B2009086National Research Foundation of Korea 2017R1A2B4007254
6 · The paper itself

Abstract

background and purposeSleep disturbance is common in patients with primary headache disorders. We were interest in whether poor sleep quality affects patients directly or via increases in the frequency and severity of headaches. To that end, we investigated the direct and indirect effects of sleep quality on the headache-related impact among patients with primary headache disorders.

methodsWe analyzed migraine and tension-type headache (TTH) in patients included in the headache registry of our headache clinic from October 2015 to May 2018. We collected information on the headache frequency, severity, and psychological status. Sleep quality and headache-related impact were measured using the Pittsburgh Sleep Quality Index and Headache Impact Test-6, respectively. We performed path analyses with headache frequency and severity as covariates to determine the direct effect of sleep quality on the headache-related impact, and the indirect effects mediated by increases in the headache frequency and severity.

resultsThis study included 915 patients: 784 with migraine and 131 with TTH. Worse sleep quality was independently associated with greater headache-related impact in both patients with migraine and those with TTH. Path analysis revealed a direct effect (β=0.207,

conclusionsWe suggest that poor sleep quality can directly increase the headache-related impact in both patients with migraine and TTH as well as indirectly by increasing the headache frequency and severity in patients with migraine.

Indexed as

Headache Impact Test-6migrainePittsburgh Sleep Quality Indexsleep qualitytension-type headache

Identifiers

PMID32319240
PMCPMC7174108
OpenAlexW3013240917

What OpenQuestion holds

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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.