Link between COVID-19-related in-hospital mortality in continental France administrative areas and weather: an ecological study.
COVID-19
epidemiology
infectious diseases
Journal
BMJ open
ISSN: 2044-6055
Titre abrégé: BMJ Open
Pays: England
ID NLM: 101552874
Informations de publication
Date de publication:
11 03 2021
11 03 2021
Historique:
entrez:
12
3
2021
pubmed:
13
3
2021
medline:
18
3
2021
Statut:
epublish
Résumé
To assess the effect of a weather index on in-hospital COVID-19-linked deaths. Ecological study. Continental France administrative areas ( COVID-19-linked in-hospital deaths. In-hospital deaths and demographics (population, human density, male sex and population percentage >59 years old) were obtained from national and centralised public databases. County weather indexes were calculated by the French National Meteorological Agency. In this observational ecological study, the relationship between in-hospital COVID-19-related mortality and climate zones in continental French counties were analysed, by comparing the cumulative in-hospital death tolls in France by county to other factors (population density, climate, age and sex). The study period lasted from 18 March to 30 May 2020. A multivariate linear-regression analysis of in-hospital mortality included climate zones, population density, population >59 years old and percentages of males as potential predictors. The significance level was set at 5%. Weather indicators and population density were factors independently associated with the COVID-19 death toll. Colder counties had significantly higher mortality rates (p<0.00001). Percentages of males and population >59 years old in counties did not affect COVID-19 in-hospital mortality. Many parameters influence COVID-19 outbreak-severity indicators. Population density is a strong factor but its exact importance is difficult to discern. Weather (mainly cold winter temperatures) was independently associated with mortality and could help explain outbreak dynamics, which began and were initially more severe in the coldest counties of continental France. Weather partly explains fatality-rate discrepancies observed worldwide.
Identifiants
pubmed: 33707270
pii: bmjopen-2020-043269
doi: 10.1136/bmjopen-2020-043269
pmc: PMC7956732
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e043269Informations de copyright
© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.
Déclaration de conflit d'intérêts
Competing interests: None declared.
Références
Euro Surveill. 2020 Jun;25(22):
pubmed: 32524946
PLoS One. 2020 Nov 20;15(11):e0242268
pubmed: 33216788
CMAJ. 2020 May 25;192(21):E566-E573
pubmed: 32385067
Science. 2020 Jul 10;369(6500):208-211
pubmed: 32404476
Lancet Infect Dis. 2020 May;20(5):533-534
pubmed: 32087114
BMJ. 2020 May 22;369:m1966
pubmed: 32444366
Lancet. 2020 Jun 6;395(10239):1763-1770
pubmed: 32442528
Lancet Glob Health. 2020 Nov;8(11):e1390-e1398
pubmed: 32979314
Sci Total Environ. 2020 Aug 10;729:138862
pubmed: 32361443
Sci Total Environ. 2020 Jul 15;726:138513
pubmed: 32304942
Euro Surveill. 2020 Mar;25(10):
pubmed: 32183930
Lancet. 2020 Mar 28;395(10229):1054-1062
pubmed: 32171076
Sci Total Environ. 2021 Feb 25;757:143757
pubmed: 33272604
Sci Total Environ. 2020 Aug 1;728:138890
pubmed: 32339844
Clin Infect Dis. 2020 Jun 16;:
pubmed: 32544949
Lancet Public Health. 2021 Jan;6(1):e12-e20
pubmed: 33301722
Thorax. 2020 Aug;75(8):693-694
pubmed: 32461231
Lancet. 2020 May 2;395(10234):1421-1422
pubmed: 32330427
Sci Total Environ. 2020 Aug 1;728:138778
pubmed: 32335405
JAMA Netw Open. 2020 Jun 1;3(6):e2011834
pubmed: 32525550
Sci Total Environ. 2020 Oct 10;738:139825
pubmed: 32512362