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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 20 Nov 2019

      This is unholy nonsense of the highest order: - n=92 - over a dozen uncontrolled t-tests - NO DIFFERENCE BETWEEN PLACEBO AND CONTROL - headline findings based on sub-group analyses - fish oil does bugger all for ADHDpic.twitter.com/sP9doRJHg3

      16 replies 113 retweets 301 likes
      Show this thread
    2. Health Nerd‏Verified account @GidMK 20 Nov 2019

      Study is here: https://www.nature.com/articles/s41398-019-0633-0/tables/1 …

      3 replies 0 retweets 9 likes
      Show this thread
    3. Health Nerd‏Verified account @GidMK 20 Nov 2019

      Basically, the researchers gave fish oil or a placebo to kids with ADHD for 12 weeks, and tested them on a range of cognitive processing tasks before and after

      1 reply 0 retweets 8 likes
      Show this thread
    4. Health Nerd‏Verified account @GidMK 20 Nov 2019

      Here's their statistical analysis. If this reads like "we threw t-tests at a range of variables until results came out", to you, I'd say your not alonepic.twitter.com/PDRCEWDJgr

      1 reply 2 retweets 29 likes
      Show this thread
    5. Health Nerd‏Verified account @GidMK 20 Nov 2019

      The main findings of the research? I'll just let the results table speak for itself. I think it does a brilliant job all by itselfpic.twitter.com/MBV7lvl8ux

      3 replies 0 retweets 16 likes
      Show this thread
    6. Health Nerd‏Verified account @GidMK 20 Nov 2019

      JUST LOOK AT THIS A dozen statistical tests. Two 'significant' p-values (with one going in the OPPOSITE DIRECTION i.e. fish oil is bad) Pretty much what we'd expect if there was no difference whatsoeverpic.twitter.com/sw7pYUSGQg

      1 reply 0 retweets 19 likes
      Show this thread
    7. Health Nerd‏Verified account @GidMK 20 Nov 2019

      All of the headlines were based on this - a subgroup analysis comparing only children with low baseline levels of EPApic.twitter.com/wzOlum1HXv

      1 reply 0 retweets 9 likes
      Show this thread
    8. Health Nerd‏Verified account @GidMK 20 Nov 2019

      In other words, in the tiny subgroup (~30 children) who started off with low levels of fatty acids in their blood, there was a tiny indication that fish oil might be of some modest benefit NOT VERY IMPRESSIVE IS IT

      1 reply 0 retweets 22 likes
      Show this thread
      Health Nerd‏Verified account @GidMK 20 Nov 2019

      Also, these headlines saying that "fish oil might be as useful as drugs" are total trash THE STUDY DIDN'T LOOK AT DRUGS AT ALL

      5:57 PM - 20 Nov 2019
      • 27 Likes
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      2 replies 0 retweets 27 likes
        1. New conversation
        2. Health Nerd‏Verified account @GidMK 20 Nov 2019

          The talk of drugs appears to be based on a quote from one of the authors of the study, which is astonishing given that the study didn't look at fish oil in comparison to drugspic.twitter.com/TPgN4TRqey

          1 reply 0 retweets 6 likes
          Show this thread
        3. Health Nerd‏Verified account @GidMK 20 Nov 2019

          Also, the study doesn't report excluding kids who were on drugs at the start of the trial, so it's likely that some of the differences could be due to drugs anyway...

          2 replies 0 retweets 7 likes
          Show this thread
        4. Health Nerd‏Verified account @GidMK 20 Nov 2019

          Also, did I mention the trial used a per-protocol analysis? I should definitely mention thatpic.twitter.com/KGXqPjF8Df

          1 reply 0 retweets 9 likes
          Show this thread
        5. Health Nerd‏Verified account @GidMK 20 Nov 2019

          So, in other words, with a design known to bias results, dozens of uncontrolled statistical tests, and still THE MAIN FINDINGS WERE NEGATIVE

          1 reply 1 retweet 14 likes
          Show this thread
        6. Health Nerd‏Verified account @GidMK 20 Nov 2019

          TL:DR - main findings were negative - no benefit to fish oil - nothing to do with ADHD drugs

          3 replies 0 retweets 36 likes
          Show this thread
        7. Health Nerd‏Verified account @GidMK 21 Nov 2019

          Blog now up on thishttps://link.medium.com/s5YLwEDeO1 

          1 reply 1 retweet 16 likes
          Show this thread
        8. End of conversation
        1. New conversation
        2. Jonathan Howard‏ @JHowardBrainMD 21 Nov 2019
          Replying to @GidMK

          And in what sense is fish oil not a drug it’s a chemical used to treat/prevent illness.

          1 reply 0 retweets 0 likes
        3. Health Nerd‏Verified account @GidMK 21 Nov 2019
          Replying to @JHowardBrainMD

          True but they specifically single out stimulants

          0 replies 0 retweets 1 like
        4. End of conversation

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