2/n This all comes back to what a meta-analysis *does* In essence, it's very simple. Think of your bog-standard arithmetic mean (average) - a bunch of numbers added together then divided by the totalpic.twitter.com/K4R0jJKbzO
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13/n I think the website ivmmeta is actually a brilliant teaching tool for what not to do here. Can you imagine adding up the time it takes for people to recover and the proportion of people who had symptoms and dividing by 2? What would that even mean?pic.twitter.com/Cd9Bg2rWsV
do meta-analysis studies ever do sensitivity analysis to examine if one or two of the included studies are dominating the outcome and therefore identify that as a possible weakness
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