ArticleThe American journal of tropical medicine and hygiene2020
Association of Country-wide Coronavirus Mortality with Demographics, Testing, Lockdowns, and Public Wearing of Masks.
Article in The American journal of tropical medicine and hygiene, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers, 8 of them syntheses that pooled 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.
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.
Who cites it
98 citing papers in PubMed, 8 syntheses or guidelines pooled it, 221 citations in OpenAlex.
- Effectiveness of social distancing measures and lockdowns for reducing transmission of COVID-19 in non-healthcare, community-based settings.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2023Pooled it
- Effectiveness of testing, contact tracing and isolation interventions among the general population on reducing transmission of SARS-CoV-2: a systematic review.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2023Pooled it
- Non-pharmaceutical interventions for COVID-19 reduced the incidence of infectious diseases: a controlled interrupted time-series study.Infectious diseases of poverty · 2023Pooled it
- Comparative effectiveness of contact tracing interventions in the context of the COVID-19 pandemic: a systematic review.European journal of epidemiology · 2023Pooled it
- Effectiveness of public health measures in reducing the incidence of covid-19, SARS-CoV-2 transmission, and covid-19 mortality: systematic review and meta-analysis.BMJ (Clinical research ed.) · 2021Pooled it
- Public health effects of travel-related policies on the COVID-19 pandemic: A mixed-methods systematic review.The Journal of infection · 2021Pooled it
- Systematic review of empirical studies comparing the effectiveness of non-pharmaceutical interventions against COVID-19.The Journal of infection · 2021Pooled it
- International travel-related control measures to contain the COVID-19 pandemic: a rapid review.The Cochrane database of systematic reviews · 2021Pooled it
- Impact of community masking on COVID-19: A cluster-randomized trial in Bangladesh.Science (New York, N.Y.) · 2022Trial
- Article
- Impact of nonpharmaceutical interventions on inflammatory diseases of the nose.Annals of medicine · 2025Article
- Masking Mandate Policies and Community-Level Factors Associated with COVID-19 Cases Spread in the State of Texas.Journal of racial and ethnic health disparities · 2025Article
- Measuring the fitted filtration efficiency of cloth masks, medical masks and respirators.PloS one · 2025Article
- The role of vaccination, testing, and public restriction policies in COVID-19 mortality and incidence: insights from Global Burden of Disease regions.Archives of medical science : AMS · 2025Article
- Deciphering the link between healthcare expenditure, corruption, and COVID-19 mortality.Scientific reports · 2024Article
- Effects of Face Mask Mandates on COVID-19 Transmission in 51 Countries: Retrospective Event Study.JMIR public health and surveillance · 2024Article
- Mask use in Chinese children admitted to the outpatient department: a single-center cross-sectional study.Environmental health and preventive medicine · 2024Article
- Selective and deceptive citation in the construction of dueling consensuses.Science advances · 2023Article
- Moral reframing of messages about mask-wearing during the COVID-19 pandemic.Scientific reports · 2023Article
- The Effects of Non-Pharmaceutical Interventions on COVID-19 Cases, Hospitalizations, and Mortality: A Systematic Literature Review and Meta-Analysis.AJPM focus · 2023Review
38 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We studied sources of variation between countries in per-capita mortality from COVID-19 (caused by the SARS-CoV-2 virus). Potential predictors of per-capita coronavirus-related mortality in 200 countries by May 9, 2020 were examined, including age, gender, obesity prevalence, temperature, urbanization, smoking, duration of the outbreak, lockdowns, viral testing, contact-tracing policies, and public mask-wearing norms and policies. Multivariable linear regression analysis was performed. In univariate analysis, the prevalence of smoking, per-capita gross domestic product, urbanization, and colder average country temperature were positively associated with coronavirus-related mortality. In a multivariable analysis of 196 countries, the duration of the outbreak in the country, and the proportion of the population aged 60 years or older were positively associated with per-capita mortality, whereas duration of mask-wearing by the public was negatively associated with mortality (all
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Registered trials
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.