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GidMK's profile
Health Nerd
Health Nerd
Health Nerd
Verified account
@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. Health Nerd‏Verified account @GidMK 11 Nov 2020
      Replying to @KCKlatt @DrNadolsky and

      I've never heard of it before but if this is the sort of research they accept, I'm not impressed. They don't even report the statistical model they use for the meta-analysis! Did anyone read this before it was published???

      1 reply 0 retweets 3 likes
    2. Kevin C. Klatt, PhD, RD‏ @KCKlatt 11 Nov 2020
      Replying to @GidMK @DrNadolsky and

      Funny you ask! Cureus was founded on the principle of rapid (couple days) peer review to emphasize post pub peer review. Just shy of a preprint server.

      1 reply 0 retweets 8 likes
    3. Health Nerd‏Verified account @GidMK 11 Nov 2020
      Replying to @KCKlatt @DrNadolsky and

      Hahahahahaha that explains quite a bit. I wouldn't put any faith whatsoever in these results lol

      2 replies 0 retweets 7 likes
    4. Health Nerd‏Verified account @GidMK 11 Nov 2020
      Replying to @GidMK @KCKlatt and

      Omg lol just reran their meta-analysis using a random-effects model (it appears that they used FI which is totally inappropriate) and the effect completely disappearspic.twitter.com/GomKPheI1q

      5 replies 0 retweets 14 likes
    5. Tamar Haspel‏Verified account @TamarHaspel 11 Nov 2020
      Replying to @GidMK @KCKlatt and

      Can you explain that for the non-statisticians out here? Seems like it might be important to know.

      1 reply 0 retweets 0 likes
    6. Health Nerd‏Verified account @GidMK 11 Nov 2020
      Replying to @TamarHaspel @KCKlatt and

      So the statistical model they used assumes that all of the trials are essentially the same. But the trials were wildly different - they should have used a model that takes into account the fact that (for example) some of the trials were randomized and some not

      2 replies 0 retweets 4 likes
    7. Health Nerd‏Verified account @GidMK 11 Nov 2020
      Replying to @GidMK @TamarHaspel and

      If you use a more appropriate model, the result goes away But hilariously this isn't even close to the biggest problem. It's just been pointed out to me that the numbers are just...wrong

      1 reply 0 retweets 1 like
    8. Health Nerd‏Verified account @GidMK 11 Nov 2020
      Replying to @GidMK @TamarHaspel and

      Like, these numbers that they are combining into a model aren't the IMPROVEMENTS that each group saw they are the numbers at the end of the study. So they're not measuring weightloss, they're measuring WEIGHT...pic.twitter.com/pCXVbFz7mL

      1 reply 0 retweets 2 likes
    9. Health Nerd‏Verified account @GidMK 11 Nov 2020
      Replying to @GidMK @TamarHaspel and

      The Hussain study, for example, is shown as having a mean difference of 2.54 in favour of the control, but actually they found a much greater weight loss for the intervention (keto) group this group just started out heavier!pic.twitter.com/2ZsZ6WToI0

      1 reply 0 retweets 0 likes
    10. Tamar Haspel‏Verified account @TamarHaspel 11 Nov 2020
      Replying to @GidMK @KCKlatt and

      I just glanced at it, but the thing that caught my eye was that weight loss was less than one pound. That doesn't necessarily mean other results are equally meh, but it's likely indicative.

      2 replies 0 retweets 1 like
      Health Nerd‏Verified account @GidMK 11 Nov 2020
      Replying to @TamarHaspel @KCKlatt and

      My point is that it's even worse than that. The control group lost 6.5kg, the intervention lost 12kg, but since they only took the post values (rather than pre-post as you should) they compared the 89kg control with 92kg intervention which meant the intervention did worse

      5:15 PM - 11 Nov 2020
      • 2 Likes
      • Yoni Freedhoff 🟣, MD Dr. Spencer Nadolsky
      1 reply 0 retweets 2 likes
        1. New conversation
        2. Tamar Haspel‏Verified account @TamarHaspel 11 Nov 2020
          Replying to @GidMK @KCKlatt and

          Ach. The original tweet with the link is deleted so now I don't have it to look at the data but I don't think it matters. Thanks for the analysis. As a journo, I depend on professionals to take good, hard looks a these studies.

          2 replies 0 retweets 2 likes
        3. Health Nerd‏Verified account @GidMK 11 Nov 2020
          Replying to @TamarHaspel @KCKlatt and

          ❤️❤️❤️❤️

          0 replies 0 retweets 1 like
        4. End of conversation

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