COVID-19 case-fatality rate and demographic and socioeconomic influencers: worldwide spatial regression analysis based on country-level data

ObjectiveTo investigate the influence of demographic and socioeconomic factors on the COVID-19 case-fatality rate (CFR) globally.DesignPublicly available register-based ecological study.SettingTwo hundred and nine countries/territories in the world.ParticipantsAggregated data including 10 445 656 co...

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Veröffentlicht in:BMJ open Jg. 10; H. 11; S. e043560
Hauptverfasser: Cao, Yang, Hiyoshi, Ayako, Montgomery, Scott
Format: Journal Article
Sprache:Englisch
Veröffentlicht: England British Medical Journal Publishing Group 03.11.2020
BMJ Publishing Group LTD
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ISSN:2044-6055, 2044-6055
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Abstract ObjectiveTo investigate the influence of demographic and socioeconomic factors on the COVID-19 case-fatality rate (CFR) globally.DesignPublicly available register-based ecological study.SettingTwo hundred and nine countries/territories in the world.ParticipantsAggregated data including 10 445 656 confirmed COVID-19 cases.Primary and secondary outcome measuresCOVID-19 CFR and crude cause-specific death rate were calculated using country-level data from the Our World in Data website.ResultsThe average of country/territory-specific COVID-19 CFR is about 2%–3% worldwide and higher than previously reported at 0.7%–1.3%. A doubling in size of a population is associated with a 0.48% (95% CI 0.25% to 0.70%) increase in COVID-19 CFR, and a doubling in the proportion of female smokers is associated with a 0.55% (95% CI 0.09% to 1.02%) increase in COVID-19 CFR. The open testing policies are associated with a 2.23% (95% CI 0.21% to 4.25%) decrease in CFR. The strictness of anti-COVID-19 measures was not statistically significantly associated with CFR overall, but the higher Stringency Index was associated with higher CFR in higher-income countries with active testing policies (regression coefficient beta=0.14, 95% CI 0.01 to 0.27). Inverse associations were found between cardiovascular disease death rate and diabetes prevalence and CFR.ConclusionThe association between population size and COVID-19 CFR may imply the healthcare strain and lower treatment efficiency in countries with large populations. The observed association between smoking in women and COVID-19 CFR might be due to the finding that the proportion of female smokers reflected broadly the income level of a country. When testing is warranted and healthcare resources are sufficient, strict quarantine and/or lockdown measures might result in excess deaths in underprivileged populations. Spatial dependence and temporal trends in the data should be taken into account in global joint strategy and/or policy making against the COVID-19 pandemic.
AbstractList To investigate the influence of demographic and socioeconomic factors on the COVID-19 case-fatality rate (CFR) globally.OBJECTIVETo investigate the influence of demographic and socioeconomic factors on the COVID-19 case-fatality rate (CFR) globally.Publicly available register-based ecological study.DESIGNPublicly available register-based ecological study.Two hundred and nine countries/territories in the world.SETTINGTwo hundred and nine countries/territories in the world.Aggregated data including 10 445 656 confirmed COVID-19 cases.PARTICIPANTSAggregated data including 10 445 656 confirmed COVID-19 cases.COVID-19 CFR and crude cause-specific death rate were calculated using country-level data from the Our World in Data website.PRIMARY AND SECONDARY OUTCOME MEASURESCOVID-19 CFR and crude cause-specific death rate were calculated using country-level data from the Our World in Data website.The average of country/territory-specific COVID-19 CFR is about 2%-3% worldwide and higher than previously reported at 0.7%-1.3%. A doubling in size of a population is associated with a 0.48% (95% CI 0.25% to 0.70%) increase in COVID-19 CFR, and a doubling in the proportion of female smokers is associated with a 0.55% (95% CI 0.09% to 1.02%) increase in COVID-19 CFR. The open testing policies are associated with a 2.23% (95% CI 0.21% to 4.25%) decrease in CFR. The strictness of anti-COVID-19 measures was not statistically significantly associated with CFR overall, but the higher Stringency Index was associated with higher CFR in higher-income countries with active testing policies (regression coefficient beta=0.14, 95% CI 0.01 to 0.27). Inverse associations were found between cardiovascular disease death rate and diabetes prevalence and CFR.RESULTSThe average of country/territory-specific COVID-19 CFR is about 2%-3% worldwide and higher than previously reported at 0.7%-1.3%. A doubling in size of a population is associated with a 0.48% (95% CI 0.25% to 0.70%) increase in COVID-19 CFR, and a doubling in the proportion of female smokers is associated with a 0.55% (95% CI 0.09% to 1.02%) increase in COVID-19 CFR. The open testing policies are associated with a 2.23% (95% CI 0.21% to 4.25%) decrease in CFR. The strictness of anti-COVID-19 measures was not statistically significantly associated with CFR overall, but the higher Stringency Index was associated with higher CFR in higher-income countries with active testing policies (regression coefficient beta=0.14, 95% CI 0.01 to 0.27). Inverse associations were found between cardiovascular disease death rate and diabetes prevalence and CFR.The association between population size and COVID-19 CFR may imply the healthcare strain and lower treatment efficiency in countries with large populations. The observed association between smoking in women and COVID-19 CFR might be due to the finding that the proportion of female smokers reflected broadly the income level of a country. When testing is warranted and healthcare resources are sufficient, strict quarantine and/or lockdown measures might result in excess deaths in underprivileged populations. Spatial dependence and temporal trends in the data should be taken into account in global joint strategy and/or policy making against the COVID-19 pandemic.CONCLUSIONThe association between population size and COVID-19 CFR may imply the healthcare strain and lower treatment efficiency in countries with large populations. The observed association between smoking in women and COVID-19 CFR might be due to the finding that the proportion of female smokers reflected broadly the income level of a country. When testing is warranted and healthcare resources are sufficient, strict quarantine and/or lockdown measures might result in excess deaths in underprivileged populations. Spatial dependence and temporal trends in the data should be taken into account in global joint strategy and/or policy making against the COVID-19 pandemic.
OBJECTIVE: To investigate the influence of demographic and socioeconomic factors on the COVID-19 case-fatality rate (CFR) globally. DESIGN: Publicly available register-based ecological study. SETTING: Two hundred and nine countries/territories in the world. PARTICIPANTS: Aggregated data including 10 445 656 confirmed COVID-19 cases. PRIMARY AND SECONDARY OUTCOME MEASURES: COVID-19 CFR and crude cause-specific death rate were calculated using country-level data from the Our World in Data website. RESULTS: The average of country/territory-specific COVID-19 CFR is about 2%-3% worldwide and higher than previously reported at 0.7%-1.3%. A doubling in size of a population is associated with a 0.48% (95% CI 0.25% to 0.70%) increase in COVID-19 CFR, and a doubling in the proportion of female smokers is associated with a 0.55% (95% CI 0.09% to 1.02%) increase in COVID-19 CFR. The open testing policies are associated with a 2.23% (95% CI 0.21% to 4.25%) decrease in CFR. The strictness of anti-COVID-19 measures was not statistically significantly associated with CFR overall, but the higher Stringency Index was associated with higher CFR in higher-income countries with active testing policies (regression coefficient beta=0.14, 95% CI 0.01 to 0.27). Inverse associations were found between cardiovascular disease death rate and diabetes prevalence and CFR. CONCLUSION: The association between population size and COVID-19 CFR may imply the healthcare strain and lower treatment efficiency in countries with large populations. The observed association between smoking in women and COVID-19 CFR might be due to the finding that the proportion of female smokers reflected broadly the income level of a country. When testing is warranted and healthcare resources are sufficient, strict quarantine and/or lockdown measures might result in excess deaths in underprivileged populations. Spatial dependence and temporal trends in the data should be taken into account in global joint strategy and/or policy making against the COVID-19 pandemic.
To investigate the influence of demographic and socioeconomic factors on the COVID-19 case-fatality rate (CFR) globally. Publicly available register-based ecological study. Two hundred and nine countries/territories in the world. Aggregated data including 10 445 656 confirmed COVID-19 cases. COVID-19 CFR and crude cause-specific death rate were calculated using country-level data from the Our World in Data website. The average of country/territory-specific COVID-19 CFR is about 2%-3% worldwide and higher than previously reported at 0.7%-1.3%. A doubling in size of a population is associated with a 0.48% (95% CI 0.25% to 0.70%) increase in COVID-19 CFR, and a doubling in the proportion of female smokers is associated with a 0.55% (95% CI 0.09% to 1.02%) increase in COVID-19 CFR. The open testing policies are associated with a 2.23% (95% CI 0.21% to 4.25%) decrease in CFR. The strictness of anti-COVID-19 measures was not statistically significantly associated with CFR overall, but the higher Stringency Index was associated with higher CFR in higher-income countries with active testing policies (regression coefficient beta=0.14, 95% CI 0.01 to 0.27). Inverse associations were found between cardiovascular disease death rate and diabetes prevalence and CFR. The association between population size and COVID-19 CFR may imply the healthcare strain and lower treatment efficiency in countries with large populations. The observed association between smoking in women and COVID-19 CFR might be due to the finding that the proportion of female smokers reflected broadly the income level of a country. When testing is warranted and healthcare resources are sufficient, strict quarantine and/or lockdown measures might result in excess deaths in underprivileged populations. Spatial dependence and temporal trends in the data should be taken into account in global joint strategy and/or policy making against the COVID-19 pandemic.
ObjectiveTo investigate the influence of demographic and socioeconomic factors on the COVID-19 case-fatality rate (CFR) globally.DesignPublicly available register-based ecological study.SettingTwo hundred and nine countries/territories in the world.ParticipantsAggregated data including 10 445 656 confirmed COVID-19 cases.Primary and secondary outcome measuresCOVID-19 CFR and crude cause-specific death rate were calculated using country-level data from the Our World in Data website.ResultsThe average of country/territory-specific COVID-19 CFR is about 2%–3% worldwide and higher than previously reported at 0.7%–1.3%. A doubling in size of a population is associated with a 0.48% (95% CI 0.25% to 0.70%) increase in COVID-19 CFR, and a doubling in the proportion of female smokers is associated with a 0.55% (95% CI 0.09% to 1.02%) increase in COVID-19 CFR. The open testing policies are associated with a 2.23% (95% CI 0.21% to 4.25%) decrease in CFR. The strictness of anti-COVID-19 measures was not statistically significantly associated with CFR overall, but the higher Stringency Index was associated with higher CFR in higher-income countries with active testing policies (regression coefficient beta=0.14, 95% CI 0.01 to 0.27). Inverse associations were found between cardiovascular disease death rate and diabetes prevalence and CFR.ConclusionThe association between population size and COVID-19 CFR may imply the healthcare strain and lower treatment efficiency in countries with large populations. The observed association between smoking in women and COVID-19 CFR might be due to the finding that the proportion of female smokers reflected broadly the income level of a country. When testing is warranted and healthcare resources are sufficient, strict quarantine and/or lockdown measures might result in excess deaths in underprivileged populations. Spatial dependence and temporal trends in the data should be taken into account in global joint strategy and/or policy making against the COVID-19 pandemic.
Objective To investigate the influence of demographic and socioeconomic factors on the COVID-19 case-fatality rate (CFR) globally.Design Publicly available register-based ecological study.Setting Two hundred and nine countries/territories in the world.Participants Aggregated data including 10 445 656 confirmed COVID-19 cases.Primary and secondary outcome measures COVID-19 CFR and crude cause-specific death rate were calculated using country-level data from the Our World in Data website.Results The average of country/territory-specific COVID-19 CFR is about 2%–3% worldwide and higher than previously reported at 0.7%–1.3%. A doubling in size of a population is associated with a 0.48% (95% CI 0.25% to 0.70%) increase in COVID-19 CFR, and a doubling in the proportion of female smokers is associated with a 0.55% (95% CI 0.09% to 1.02%) increase in COVID-19 CFR. The open testing policies are associated with a 2.23% (95% CI 0.21% to 4.25%) decrease in CFR. The strictness of anti-COVID-19 measures was not statistically significantly associated with CFR overall, but the higher Stringency Index was associated with higher CFR in higher-income countries with active testing policies (regression coefficient beta=0.14, 95% CI 0.01 to 0.27). Inverse associations were found between cardiovascular disease death rate and diabetes prevalence and CFR.Conclusion The association between population size and COVID-19 CFR may imply the healthcare strain and lower treatment efficiency in countries with large populations. The observed association between smoking in women and COVID-19 CFR might be due to the finding that the proportion of female smokers reflected broadly the income level of a country. When testing is warranted and healthcare resources are sufficient, strict quarantine and/or lockdown measures might result in excess deaths in underprivileged populations. Spatial dependence and temporal trends in the data should be taken into account in global joint strategy and/or policy making against the COVID-19 pandemic.
Author Cao, Yang
Hiyoshi, Ayako
Montgomery, Scott
AuthorAffiliation 1 Clinical Epidemiology and Biostatistics, Universitetssjukhuset Örebro, School of Medical Sciences , Örebro University , Örebro , Sweden
2 Unit of Integrative Epidemiology, Institute of Environmental Medicine , Karolinska Institutet , Stockholm , Sweden
3 Department of Public Health Sciences , Stockholm University , Stockholm , Sweden
4 Clinical Epidemiology Division, Department of Medicine , Karolinska Institutet , Stockholm , Sweden
5 Department of Epidemiology and Public Health , University College London , London , United Kingdom
AuthorAffiliation_xml – name: 2 Unit of Integrative Epidemiology, Institute of Environmental Medicine , Karolinska Institutet , Stockholm , Sweden
– name: 4 Clinical Epidemiology Division, Department of Medicine , Karolinska Institutet , Stockholm , Sweden
– name: 5 Department of Epidemiology and Public Health , University College London , London , United Kingdom
– name: 1 Clinical Epidemiology and Biostatistics, Universitetssjukhuset Örebro, School of Medical Sciences , Örebro University , Örebro , Sweden
– name: 3 Department of Public Health Sciences , Stockholm University , Stockholm , Sweden
Author_xml – sequence: 1
  givenname: Yang
  orcidid: 0000-0002-3552-9153
  surname: Cao
  fullname: Cao, Yang
  email: yang.cao@oru.se
  organization: Unit of Integrative Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
– sequence: 2
  givenname: Ayako
  surname: Hiyoshi
  fullname: Hiyoshi, Ayako
  organization: Department of Public Health Sciences, Stockholm University, Stockholm, Sweden
– sequence: 3
  givenname: Scott
  orcidid: 0000-0001-6328-5494
  surname: Montgomery
  fullname: Montgomery, Scott
  organization: Department of Epidemiology and Public Health, University College London, London, United Kingdom
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Snippet ObjectiveTo investigate the influence of demographic and socioeconomic factors on the COVID-19 case-fatality rate (CFR) globally.DesignPublicly available...
To investigate the influence of demographic and socioeconomic factors on the COVID-19 case-fatality rate (CFR) globally. Publicly available register-based...
To investigate the influence of demographic and socioeconomic factors on the COVID-19 case-fatality rate (CFR) globally.OBJECTIVETo investigate the influence...
OBJECTIVE: To investigate the influence of demographic and socioeconomic factors on the COVID-19 case-fatality rate (CFR) globally. DESIGN: Publicly available...
Objective To investigate the influence of demographic and socioeconomic factors on the COVID-19 case-fatality rate (CFR) globally. Design Publicly available...
Objective To investigate the influence of demographic and socioeconomic factors on the COVID-19 case-fatality rate (CFR) globally.Design Publicly available...
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SubjectTerms Age Distribution
Betacoronavirus
Cardiovascular Diseases - mortality
Clinical Laboratory Techniques - statistics & numerical data
Communicable Disease Control - statistics & numerical data
Coronavirus Infections - diagnosis
Coronavirus Infections - mortality
Coronaviruses
COVID-19
COVID-19 Testing
Datasets
Diabetes
Diabetes Mellitus - epidemiology
Disease prevention
Epidemiology
Estimates
Fatalities
Gross Domestic Product - statistics & numerical data
Health Policy
Health Status Indicators
Humans
Life Expectancy
Mortality
Pandemics
Pneumonia, Viral - mortality
Population
Population Density
Prevalence
Public health
Regression analysis
Risk factors
SARS-CoV-2
Severe acute respiratory syndrome coronavirus 2
Smoking - epidemiology
Socioeconomic factors
Spatial Analysis
Spatial Regression
Variables
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Title COVID-19 case-fatality rate and demographic and socioeconomic influencers: worldwide spatial regression analysis based on country-level data
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