Evidence map›Paper›PMID 29903797›Full record

ArticleBMJ open2018

Association between sleep duration and stroke prevalence in Korean adults: a cross-sectional study.

Min-Young Kim, Seunghoon Lee, You Ho Myong, Yoon Jae Lee, Me-Riong Kim, Joon-Shik Shin, Jinho Lee, In-Hyuk Ha

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 2 pooled it
1.3field-weighted citation impact, top 18% 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

10 citing papers in PubMed, 2 syntheses or guidelines pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Prestroke sleep and stroke: a narrative review.Sleep & breathing = Schlaf & Atmung · 2025
    Review
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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

8 authors at 3 institutions in 1 country.

Min-Young KimJaseng Spine and Joint Research Institute, Jaseng Medical Foundation, Seoul, Korea.
Seunghoon LeeCollege of Medicine, Seoul National University, Seoul, Korea.
You Ho MyongCollege of Medicine, Seoul National University, Seoul, Korea.
Yoon Jae LeeJaseng Spine and Joint Research Institute, Jaseng Medical Foundation, Seoul, Korea.
Me-Riong KimJaseng Spine and Joint Research Institute, Jaseng Medical Foundation, Seoul, Korea.
Joon-Shik ShinJaseng Hospital of Korean Medicine, Seoul, Korea.
Jinho LeeJaseng Hospital of Korean Medicine, Seoul, Korea.
In-Hyuk HaJaseng Spine and Joint Research Institute, Jaseng Medical Foundation, Seoul, Korea.ORCID 0000-0002-5020-6723
Jaseng Medical Foundation · KRJaseng Hospital of Korean Medicine · KRSeoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesAlthough sleep, chronic disease and its related mortality are extensively studied areas, the association between stroke and sleep duration is relatively unknown. The aim of this study was to investigate the association between long and short sleep duration and stroke prevalence.

designA cross-sectional survey study. SETTING AND

participantsAdult surveyees (aged ≥19 years) who answered items relating to sleep duration and stroke in the 2010-2014 Korean National Health and Nutrition Surveys (n=17 601). OUTCOME MEASURES: Participants were divided into three groups by sleep duration (short: ≤6 hours/day, normal: 7-8 hours/day and long: ≥9 hours/day). Stroke prevalence in each sleep duration group was compared using logistic regression analysis, and sociodemographic characteristics, medical history, lifestyle habits and mental health factors were set as confounding variables.

resultsOn adjusting for sex and age, each sleep-duration group displayed significantly different health-related characteristics. The short sleep and long sleep duration groups indicated significantly higher psychological factors for stress perception, depressive symptoms and psychiatric counselling compared with the normal sleep duration group. On adjustment of various confounders, the long sleep duration group demonstrated significantly higher ORs for stroke compared with the normal sleep duration group (OR 1.96, 95% CI 1.06 to 3.61). Also, when stratified by sex, men did not exhibit differences in stroke prevalence by sleep duration, but women showed higher stroke prevalence in the long sleep duration group compared with normal sleep duration (OR 2.94, 95% CI 1.21 to 7.17).

conclusionsLonger sleep duration was associated with higher stroke prevalence, and this trend was more pronounced in women.

Indexed as

SleepAdultAgedAged, 80 and overAge FactorsCausalityConfounding Factors, EpidemiologicCross-Sectional StudiesFemaleHumansLogistic ModelsMaleMiddle AgedNutrition SurveysPrevalenceRepublic of Koreacross-sectional studyKorean adultssleep durationstroke

Identifiers

PMID29903797
PMCPMC6009631
OpenAlexW2808142966

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.