Evidence map›Paper›PMID 37172196›Full record

ArticleEnvironmental health perspectives2023

Mortality Risk of Hot Nights: A Nationwide Population-Based Retrospective Study in Japan.

Satbyul Estella Kim, Masahiro Hashizume, Ben Armstrong, Antonio Gasparrini, Kazutaka Oka, Yasuaki Hijioka, Ana M Vicedo-Cabrera, Yasushi Honda

Abstract read
In one paragraph

Article in Environmental health perspectives, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Prenatal exposure to extreme heat and autism in children.The Science of the total environment · 2026
    Article
  6. Article
  7. Observational
  8. Review
  9. Article
  10. Mortality risk and burden associated with non-optimum temperatures in Puerto Rico.Environmental research letters : ERL [Web site] · 2025
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Coronary artery culprit lesions progression and ambient temperature exposure - personalised analysis.Postepy w kardiologii interwencyjnej = Advances in interventional cardiology · 2024
    Article
  16. Article
  17. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Satbyul Estella KimFaculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan.
Masahiro HashizumeDepartment of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Ben ArmstrongDepartment of Public Health Environments and Society, London School of Hygiene & Tropical Medicine, London, UK.
Antonio GasparriniDepartment of Public Health Environments and Society, London School of Hygiene & Tropical Medicine, London, UK.
Kazutaka OkaCenter for Climate Change Adaptation, National Institute for Environmental Studies, Tsukuba, Japan.
Yasuaki HijiokaCenter for Climate Change Adaptation, National Institute for Environmental Studies, Tsukuba, Japan.
Ana M Vicedo-CabreraInstitute of Social and Preventive Medicine, University of Bern, Bern, Switzerland.
Yasushi HondaFaculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan.ORCID 0000-0003-2248-1629

Funding

Medical Research Council MR/M022625/1Medical Research Council MR/V034162/1
6 · The paper itself

Abstract

backgroundThe health effects of heat are well documented; however, limited information is available regarding the health risks of hot nights. Hot nights have become more common, increasing at a faster rate than hot days, making it urgent to understand the characteristics of the hot night risk.

objectivesWe estimated the effects of hot nights on the cause- and location-specific mortality in a nationwide assessment over 43 y (1973-2015) using a unified analytical framework in the 47 prefectures of Japan.

methodsHot nights were defined as days with

resultsOverall, 24,721,226 deaths were included in this study. Nationally, all-cause mortality increased by 9%-10% [

conclusionsOur findings support the evidence of mortality impacts from hot nights in excess of that explicable by daily mean temperature and have implications useful for establishing public health policy and research efforts estimating the health effects of climate change. https://doi.org/10.1289/EHP11444.

Indexed as

Hot TemperatureMortalityJapanRetrospective StudiesSeasonsTemperature

Identifiers

PMID37172196
PMCPMC10181675

What OpenQuestion holds

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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 OpenQuestion graph.