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GidMK's profile
Health Nerd
Health Nerd
Health Nerd
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@GidMK

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Health NerdVerified account

@GidMK

Epidemiologist. Writer (Guardian, Observer etc). "Well known research trouble-maker". PhDing at @UoW Host of @senscipod Email gidmk.healthnerd@gmail.com he/him

Sydney, New South Wales
theguardian.com/profile/gideon…
Joined November 2015

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    1. Rickard Carlsson‏ @RickCarlsson Aug 4
      Replying to @RickCarlsson @NoahHaber

      A lot of meta-analyses aren’t systematic reviews though. They’re like people going to a zoo, average all the animals they see - tigers, monkeys, birds— everything… and return home and tell a confident tale about the opossum they saw.

      1 reply 0 retweets 6 likes
    2. Robin N. Kok‏ @robinnkok Aug 4
      Replying to @RickCarlsson @NoahHaber

      Polishing a pile of turds to make them shine like one big diamond, is what I always say.

      1 reply 0 retweets 1 like
    3. Rickard Carlsson‏ @RickCarlsson Aug 4
      Replying to @robinnkok @NoahHaber

      Best systematic reviews be like:pic.twitter.com/T3Q3pW6ghH

      1 reply 1 retweet 4 likes
    4. Noah Haber‏ @NoahHaber Aug 4
      Replying to @RickCarlsson @robinnkok

      Noah Haber Retweeted Rickard Carlsson

      Why not? We can't do this for *publication* reasons, but certainly can for scientific rigor reasons. If the whole literature is a cesspool, the best number of studies to include in the meta-analysis is usually zero.https://twitter.com/RickCarlsson/status/1423013651636707333 …

      Noah Haber added,

      Rickard Carlsson @RickCarlsson
      Replying to @RickCarlsson @NoahHaber
      > so what’s the alternative? Ignore all shitty studies? I wish we could but no, we have to dig into the cesspool of literature we have and carefully summarize the best evidence. And explain why many studies didn’t even make it past abstract, or had bad design or risk of bias.
      1 reply 0 retweets 1 like
    5. Rickard Carlsson‏ @RickCarlsson Aug 4
      Replying to @NoahHaber @robinnkok

      If we completely ignore it, then others will use it and fault us for ignoring it. We have to deal with it. And yes, it’s not uncommon for eg a Cochrane review to conclude there are no studies of high quality. That’s a very important part of systematic reviews! >

      1 reply 0 retweets 1 like
    6. Rickard Carlsson‏ @RickCarlsson Aug 4
      Replying to @RickCarlsson @NoahHaber @robinnkok

      > however I agree we should not set out to a meta-analysis it’s just a tool at the end IF we have a set of studies…

      1 reply 0 retweets 0 likes
    7. Noah Haber‏ @NoahHaber Aug 4
      Replying to @RickCarlsson @robinnkok

      Which brings it all back around to my point. Being forced to have meta-analyses to try to fight off worse meta-analyses in situations where a systematic review would conclude that there is no meta-analysis-worthy studies available is not a sign of a functional system.

      2 replies 0 retweets 2 likes
    8. Rickard Carlsson‏ @RickCarlsson Aug 4
      Replying to @NoahHaber @robinnkok

      Agreed. But once we have k > 3 studies we need to summarize it somehow and I’ve seen alternatives that are straight out of Lovecraft… So we need it much like we need statistical inference of some sort :)

      1 reply 0 retweets 2 likes
    9. Rickard Carlsson‏ @RickCarlsson Aug 4
      Replying to @RickCarlsson @NoahHaber @robinnkok

      But yeah MA has so much misuse that we might as well do systematic reviews with multilevel modeling instead to avoid the term ;)

      2 replies 0 retweets 1 like
    10. Noah Haber‏ @NoahHaber Aug 4
      Replying to @RickCarlsson @robinnkok

      I'll push back, since it's my "whole thing" as it were. We don't "need" to do any such thing, and "need" to do something unreliable and flawed is extraordinarily harmful. We have to learn to be fine doing nothing, because "nothing" is often the right thing to do.

      2 replies 0 retweets 3 likes
      Health Nerd‏Verified account @GidMK Aug 4
      Replying to @NoahHaber @RickCarlsson @robinnkok

      Unfortunately it's less prestigious to get published in the Journal of Nothing than the Journal of American Moody Angst

      2:43 PM - 4 Aug 2021
      • 2 Likes
      • Caleb LoSchiavo, MPH Balgor
      0 replies 0 retweets 2 likes

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