Here's the study. It was looking at a 393-person subset of a larger study, which as I've said is really, really small for this kind of observational trial https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2719576 …
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Seriously, I doubt whether this was sufficiently well-powered to establish a statistical difference once you've split it up into so many categories
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You can kind of see this in that they split the drinkers into 4 groups: never, abstainers, 1-7 drinks per week, 7+ drinks per week These are ~really weird~pic.twitter.com/d0yF2oA7Z5
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Usually with drinking, you'd divide it into 1 per day (i.e. 7 per week), 2 per day, 3 per day etc This significantly limits the applicability of the findings straight up, because the AVERAGE alcohol consumption in many countries is more than double this 'safe' amount
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And the tiny sample size means that their results are only ~barely~ significant, because the difference between moderate and other drinkers is always very small anywaypic.twitter.com/a7eMAqTIeP
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Also, it's only when compared to abstinence, which we know is not a good model for behavior
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Anyway, there's not a whole lot you can take home from a massively confounded 393-person observational study The headlines are almost certainly nonsense Wine is still not great for people with heart disease as far as we know
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Oh, also, the "2-years longer" nonsense that everyone had in their headlines? That was based off the point estimate in differences But the CONFIDENCE INTERVALS INTERSECT (a lot)pic.twitter.com/nYalwtvXP9
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That doesn't mean that there's no difference, but it does make the certainty of any specific difference much lower, making the two years total guesswork
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End of conversation
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BBBBut it fits my precious narrative! It must be right! Right?
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