Ten reasons why it’s still too soon to compare international death rates from Covid-19

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Professor Chris Whitty has explained that “all-cause mortality, age adjusted, and possibly seasonally adjusted” would be the most important measure – sentiment echoed by other Governmental advisers.
This is not them trying to avoid criticism, nor is it an ideological position.  .....
But no one can make any assessments without doing a proper analysis. And that means stripping back data so you know what you’re measuring. Lockdown and other interventions (or lack of interventions) have to be isolated to see their impact.As the Government says, all-cause mortality, adjusted by age, will ultimately be the best way to access this – as it’s the only measurement that can be properly compared across countries – all of which are dealing with and recording Covid-19."