Evidence map›Paper›PMID 36938119›Full record

ArticleGeoHealth2023

Chronic Diseases Associated With Mortality in British Columbia, Canada During the 2021 Western North America Extreme Heat Event.

Michael Joseph Lee, Kathleen E McLean, Michael Kuo, Gregory R A Richardson, Sarah B Henderson

Open access · goldAbstract read
In one paragraph

Article in GeoHealth, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
7.4field-weighted citation impact, top 2% 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

26 citing papers in PubMed, 47 citations in OpenAlex.

  1. Preventive Interventions to Protect Homeless People with Major Mental Disorders from Climate-Related Emergencies: a Critically Important Yet Neglected Public Health Imperative.Academic psychiatry : the journal of the American Association of Directors of Psychiatric Residency Training and the Association for Academic Psychiatry · 2026
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  2. Article
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  5. CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2025
    Article
  6. Review
  7. Article
  8. Psychotropic prescriptions in the context of extreme heat.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2025
    Article
  9. Article
  10. Psychiatrists should champion the care of those with severe mental illnesses experiencing climate change-related heat stress.Australasian psychiatry : bulletin of Royal Australian and New Zealand College of Psychiatrists · 2025
    Article
  11. Review
  12. Article
  13. Review
  14. Approach to heat-related illness.Canadian family physician Medecin de famille canadien · 2024
    Review
  15. Climate change and mental health: Position paper of the European Psychiatric Association.European psychiatry : the journal of the Association of European Psychiatrists · 2024
    Review
  16. Heat Resilience and Severe & Persistent Mental Illness.Canadian journal of psychiatry. Revue canadienne de psychiatrie · 2024
    Article
  17. Article
  18. "International journal of environmental research and public health · 2024
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  19. Article
  20. Review
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

5 authors at 2 institutions in 1 country.

Michael Joseph LeeEnvironmental Health Services British Columbia Centre for Disease Control Vancouver BC Canada.ORCID https://orcid.org/0000-0001-7223-3258
Kathleen E McLeanEnvironmental Health Services British Columbia Centre for Disease Control Vancouver BC Canada.
Michael KuoEnvironmental Health Services British Columbia Centre for Disease Control Vancouver BC Canada.
Gregory R A RichardsonExtreme Heat Program Climate Change and Innovation Bureau Health Canada Ottawa ON Canada.
Sarah B HendersonEnvironmental Health Services British Columbia Centre for Disease Control Vancouver BC Canada.
BC Centre for Disease Control · CAHealth Canada · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Western North America experienced an unprecedented extreme heat event (EHE) in 2021, characterized by high temperatures and reduced air quality. There were approximately 740 excess deaths during the EHE in the province of British Columbia, making it one of the deadliest weather events in Canadian history. It is important to understand who is at risk of death during EHEs so that appropriate public health interventions can be developed. This study compares 1,614 deaths from 25 June to 02 July 2021 with 6,524 deaths on the same dates from 2012 to 2020 to examine differences in the prevalence of 26 chronic diseases between the two groups. Conditional logistic regression was used to estimate the odds ratio (OR) for each chronic disease, adjusted for age, sex, and all other diseases, and conditioned on geographic area. The OR [95% confidence interval] for schizophrenia among all EHE deaths was 3.07 [2.39, 3.94], and was larger than the ORs for other conditions. Chronic kidney disease and ischemic heart disease were also significantly increased among all EHE deaths, with ORs of 1.36 [1.18, 1.56] and 1.18 [1.00, 1.38], respectively. Chronic diseases associated with EHE mortality were somewhat different for deaths attributed to extreme heat, deaths with an unknown/pending cause, and non-heat-related deaths. Schizophrenia was the only condition associated with significantly increased odds of EHE mortality in all three subgroups. These results confirm the role of mental illness in EHE risk and provide further impetus for interventions that target specific groups of high-risk individuals based on underlying chronic conditions.

Indexed as

administrative dataair qualitychronic diseaseextreme heatmortalityvital statistics

Identifiers

PMID36938119
PMCPMC10015851
OpenAlexW4324357367

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.