Evidence map›Paper›PMID 39496441›Full record

ArticleEnvironmental health and preventive medicine2024

Seasonal variation in vascular dehydration risk: insights from the Kobe Orthopedic and Biomedical Epidemiologic (KOBE) study.

Tomofumi Nishikawa, Naomi Miyamatsu, Aya Higashiyama, Yoshimi Kubota, Yoko Nishida, Takumi Hirata, Aya Hirata, Junji Miyazaki, Daisuke Sugiyama, Kazuyo Kuwabara and 3 more

Abstract read
In one paragraph

Article in Environmental health and preventive medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

  1. The flavonoid isoliquiritigenin promotes lifespan extension of Caenorhabditis elegans through the transcription factor DAF-16 and aquaporin-2.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas · 2026
    Article
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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

13 authors.

Tomofumi NishikawaFaculty of Health Science, Kyoto Koka Women's University.
Naomi MiyamatsuDepartment of Clinical Nursing, Shiga University of Medical Science.
Aya HigashiyamaDepartment of Hygiene, Wakayama Medical University.
Yoshimi KubotaDepartment of Environmental and Preventive Medicine, School of Medicine, Hyogo Medical University.
Yoko NishidaOsaka Institute of Public Health.
Takumi HirataHuman Care Research Team, Tokyo Metropolitan Institute for Geriatrics and Gerontology.
Aya HirataDepartment of Preventive Medicine and Public Health, School of Medicine, Keio University.
Junji MiyazakiDepartment of Preventive Medicine and Public Health, School of Medicine, Keio University.
Daisuke SugiyamaFaculty of Nursing and Medical Care, Keio University.
Kazuyo KuwabaraDepartment of Preventive Medicine and Public Health, School of Medicine, Keio University.
Sachimi KuboDepartment of Nutrition and Food Sciences, Tezukayama Gakuin University.
Yoshihiro MiyamotoOpen Innovation Center, National Cerebral and Cardiovascular Center.
Tomonori OkamuraDepartment of Preventive Medicine and Public Health, School of Medicine, Keio University.ORCID http://orcid.org/0000-0003-0488-0351

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDehydration, a risk factor for ischemic cerebrovascular diseases, is common in summer; however, the incidence of ischemic diseases is not necessarily higher in summer. Therefore, this study aimed to clarify the relationships between serum osmolarity, hematocrit, daily non-alcohol drink (NAD) intake and factors such as season and age as risk factors for dehydration.

methodParticipants (703 women and 306 men) in the follow-up survey, in 2012 and 2013, of the Kobe Orthopedic and Biomedical Epidemiologic (KOBE) Study, consisting of healthy individuals living in Kobe, Japan, were categorized into two groups based on the examination month: the warmer and colder seasons. Multivariate analyses were conducted to examine disparities in serum osmolarity, hematocrit, and NAD intake between these two groups.

resultsThe colder season was found to be negatively correlated with serum osmolarity and NAD intake, but positively correlated with hematocrit, even after adjusting for relevant factors. Age was independently associated with serum osmolarity, but not with hematocrit and NAD intake.

conclusionsThis study suggests that intra-vascular volume depletion is more likely in the colder season despite lower serum osmolarity compared to the warmer season. Age-related increases in serum osmolarity without a corresponding rise in water intake may contribute to this. These findings support the importance of addressing dehydration in the colder season, particularly in older adults.

Indexed as

DehydrationSeasonsAdultAgedAged, 80 and overDrinkingFemaleHematocritHumansJapanMaleMiddle AgedOsmolar ConcentrationRisk FactorsCross-sectional studyDehydrationHematocritSeasonsSerum osmolarity

Identifiers

PMID39496441
PMCPMC11551438

What Socratic holds

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LicenceCC BY
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Registered trials

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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 Socratic graph.