Neue metastudie von der John Hopkins University zur effektivität von lockdowns, geschäftsschließungen, maskenpflicht und co:
https://sites.krieger.jhu.edu/iae/files/2022/01/A-Literature-Review-and-Meta-Analysis-of-the-Effects-of-Lockdowns-on-COVID-19-Mortality.pdfQuote
Public health experts and politicians have – based on forecasts in epidemiological studies such as
that of Imperial College London (Ferguson et al. (2020) – embraced compulsory lockdowns as
an effective method for arresting the pandemic. But, have these lockdown policies been effective
in curbing COVID-19 mortality?
[...]
Overall, our meta-analysis fails to confirm that lockdowns have had a large, significant effect on
mortality rates. Studies examining the relationship between lockdown strictness (based on the
OxCGRT stringency index) find that the average lockdown in Europe and the United States only
reduced COVID-19 mortality by 0.2% compared to a COVID-19 policy based solely on
recommendations. Shelter-in-place orders (SIPOs) were also ineffective. They only reduced
COVID-19 mortality by 2.9%.
Studies looking at specific NPIs (lockdown vs. no lockdown, facemasks, closing non-essential
businesses, border closures, school closures, and limiting gatherings) also find no broad-based
evidence of noticeable effects on COVID-19 mortality. However, closing non-essential
businesses seems to have had some effect (reducing COVID-19 mortality by 10.6%), which is
likely to be related to the closure of bars. Also, masks may reduce COVID-19 mortality, but
there is only one study that examines universal mask mandates. The effect of border closures,
school closures and limiting gatherings on COVID-19 mortality yields precision-weighted
estimates of -0.1%, -4.4%, and 1.6%, respectively. Lockdowns (compared to no lockdowns) also
do not reduce COVID-19 mortality.
Quote
We find no evidence that lockdowns, school
closures, border closures, and limiting gatherings have had a noticeable effect on COVID-19
mortality. There is some evidence that business closures reduce COVID-19 mortality, but the
variation in estimates is large and the effect seems related to closing bars. There may be an effect
of mask mandates, but just two studies look at this, one of which one only looks at the effect of
employee mask mandates.
tldr: lockdowns, schulschließungen, grenzschließungen und ausgangssperren hatten so gut wie keinen effekt auf die corona-sterblichkeit.
Einen spürbaren effekt hatte das schließen von bars und vergleichbaren einrichtungen (wie diskos oder klubs) und maskenpflicht am arbeitsplatz. Ob eine darüber hinausgehende allgemeine maskenpflicht auch was bringt, kann man aufgrund der dünnen datenlage nicht sagen.
This post was edited by Black XistenZ on Feb 1 2022 12:05pm