Published by The Lancet, lockdowns and testing not associated with COVID-19 mortality per million.
“Rapid border closures, full lockdowns, and wide-spread testing were not associated with COVID-19 mortality per million people.”
Higher obesity, higher median age, longer time to border closure, increased income inequality, and worse global health security had a negative effect on caseloads, mortality, or increased time to recovery.
“Increasing COVID-19 caseloads were associated with countries with higher obesity, median population age, and longer time to border closures from the first reported case.”
“Increased mortality per million was significantly associated with higher obesity prevalence and per capita gross domestic product (GDP).”
“Reduced income dispersion reduced mortality and the number of critical cases.”
“Full lockdowns and reduced country vulnerability to biological threats (i.e. high scores on the global health security scale for risk environment) were significantly associated with increased patient recovery rates.”
A country level analysis measuring the impact of government actions, country preparedness and socioeconomic factors on COVID-19 mortality and related health outcomes
In this exploratory analysis, low levels of national preparedness, scale of testing and population characteristics were associated with increased national case load and overall mortality.
https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(20)30208-X/fulltext