Author Archives: colinmathers

How does population age structure affect overall case fatality ratios for COVID-19?

The first graph shows coronavirus deaths in Italy up to 26 March 2020 by sex and age. The overall case fatality rate for lab confirmed cases is 11.1% and 70% of deaths are male (closer to 80% below age 80, … Continue reading

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COVID-19 growth rates by country

Nice new site http://91-divoc.com/pages/covid-visualization/ that plots time trends in cases and deaths, total numbers and rates per million population. The time axis is days since 100+ cases/deaths or days since 1 case/death per million population. I’ve attached screenshots of cases/million … Continue reading

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Covid-19 update

worldometers.info now also reports coronavirus cases and deaths as rates per million population. I’ve done some updated plots for confirmed case rates, reported death rates, and apparent case fatality rates (CFR). The latter are calculated simply as reported deaths per … Continue reading

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Looking at the COVID-19 statistics on day 3

I live just a couple of kilometres from the border of Switzerland with France, and last Monday evening the border was closed except for frontaliers (who live across the border from work) and those with urgent reasons.  We are now … Continue reading

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Declining freedom in the world

Last week, Freedom House released its 2020 annual report on global freedom. The report documents trends in every region of the world of declining political and civil freedom: “In every region of the world, democracy is under attack by populist … Continue reading

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Climate change and the denial of reality

Greta Thunberg and Extinction Rebellion have been raising awareness of the urgent need to stop talking and start acting on global warming. The evidence that global warming is real and that it is human-caused is now overwhelming, but the public … Continue reading

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Gun ownership and gun deaths

Given recent events, I took a look at the data relating to gun deaths overall and the  extraordinarily high rates of mass shootings in the USA compared to the rest of the world. Despite President Trump blaming video games and … Continue reading

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