Evidence map›Paper›PMID 34371853›Full record

Observational studyNutrients2021

Association of Body Mass Index with Ischemic and Hemorrhagic Stroke.

Masahiro Shiozawa, Hidehiro Kaneko, Hidetaka Itoh, Kojiro Morita, Akira Okada, Satoshi Matsuoka, Hiroyuki Kiriyama, Tatsuya Kamon, Katsuhito Fujiu, Nobuaki Michihata and 7 more

Abstract readObservational Study
In one paragraph

Observational study in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

55 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Weight Management Post-Stroke: A Scoping Review.American journal of lifestyle medicine · 2026
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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

17 authors.

Masahiro ShiozawaThe Department of Cardiovascular Medicine, The University of Tokyo, Tokyo 113-8655, Japan.
Hidehiro KanekoThe Department of Cardiovascular Medicine, The University of Tokyo, Tokyo 113-8655, Japan.
Hidetaka ItohThe Department of Cardiovascular Medicine, The University of Tokyo, Tokyo 113-8655, Japan.
Kojiro MoritaGlobal Nursing Research Center, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan.
Akira OkadaDepartment of Prevention of Diabetes and Lifestyle-Related Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan.
Satoshi MatsuokaThe Department of Cardiovascular Medicine, The University of Tokyo, Tokyo 113-8655, Japan.
Hiroyuki KiriyamaThe Department of Cardiovascular Medicine, The University of Tokyo, Tokyo 113-8655, Japan.
Tatsuya KamonThe Department of Cardiovascular Medicine, The University of Tokyo, Tokyo 113-8655, Japan.
Katsuhito FujiuThe Department of Cardiovascular Medicine, The University of Tokyo, Tokyo 113-8655, Japan.ORCID 0000-0002-1889-9291
Nobuaki MichihataThe Department of Health Services Research, The University of Tokyo, Tokyo 113-0033, Japan.
Taisuke JoThe Department of Health Services Research, The University of Tokyo, Tokyo 113-0033, Japan.
Norifumi TakedaThe Department of Cardiovascular Medicine, The University of Tokyo, Tokyo 113-8655, Japan.ORCID 0000-0003-4818-3347
Hiroyuki MoritaThe Department of Cardiovascular Medicine, The University of Tokyo, Tokyo 113-8655, Japan.
Sunao NakamuraThe Department of Cardiology, New Tokyo Hospital, Matsudo 270-2232, Japan.
Koichi NodeDepartment of Cardiovascular Medicine, Saga University, Saga 849-8501, Japan.
Hideo YasunagaThe Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo 113-0033, Japan.
Issei KomuroThe Department of Cardiovascular Medicine, The University of Tokyo, Tokyo 113-8655, Japan.

Funding

Ministry of Education, Culture, Sports, Science and Technology, Japan 20H03907, 21H03159, and 21K08123Ministry of Health, Labour and Welfare, Japan 21AA2007
6 · The paper itself

Abstract

Data on the association between body mass index (BMI) and stroke are scarce. We aimed to examine the association between BMI and incident stroke (ischemic or hemorrhagic) and to clarify the relationship between underweight, overweight, and obesity and stroke risk stratified by sex. We analyzed the JMDC Claims Database between January 2005 and April 2020 including 2,740,778 healthy individuals (Median (interquartile) age, 45 (38-53) years; 56.2% men; median (interquartile) BMI, 22.3 (20.2-24.8) kg/m

Indexed as

Body Mass IndexAdultDatabases, FactualFemaleHeart Disease Risk FactorsHemorrhagic StrokeHumansIncidenceJapanMaleMiddle AgedObesityOverweightProportional Hazards ModelsRetrospective StudiesSex Factorsbody mass indexhemorrhagic strokeischemic strokeobesityunderweight

Identifiers

PMID34371853
PMCPMC8308685

What OpenQuestion holds

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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.