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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. David Nunan‏ @dnunan79 31 Jan 2020

      David Nunan Retweeted Alan Watson

      I’d start with asking questions that a. matter and b. have some degree of ability to implement and impact the people who would benefit most.https://twitter.com/Alan_Watson_/status/1223224456677666817 …

      David Nunan added,

      Alan Watson @Alan_Watson_
      Replying to @dnunan79
      It is easy to knock such studies but it would be more helpful if we had the benefit of your expertise in proposing alternative approaches which might yield more reliable results. RCTs are clearly not realistic in these cases so what would you suggest? https://twitter.com/Alan_Watson_/status/1223209887322210310?s=20 …
      2 replies 0 retweets 5 likes
      Show this thread
    2. David Nunan‏ @dnunan79 31 Jan 2020

      Ps. It’s not easy to knock. It takes a lot of time and effort to constantly pick apart studies that are (most likely) done for CVs and for publishers to drive traffic. All under the remit of “evidence-based”. As Altman said. Less research, better research, for the right reasons

      1 reply 1 retweet 4 likes
      Show this thread
    3. Alan Watson‏ @Alan_Watson_ 31 Jan 2020
      Replying to @dnunan79

      It isn't challenging to churn out this sort of attack though, is it? And you picked up on this thread. You don't even need to read the paper (though if GidMK had done so then he would have known 1) they didn't just "ask people what they eat (once)" & 2) it was a 15 year study)pic.twitter.com/oGPax75GWO

      1 reply 0 retweets 0 likes
    4. David Nunan‏ @dnunan79 31 Jan 2020
      Replying to @Alan_Watson_

      I imagine after doing like over 100 deep dives into these types of studies @GidMK defaults to this stance as he knows it’s probably about right 95/100 (P = 0.05). These studies produce associations mixed up of exposure effect, confounding, bias & “interpret w caution” And I do

      1 reply 0 retweets 0 likes
    5. Health Nerd‏Verified account @GidMK 31 Jan 2020
      Replying to @dnunan79 @Alan_Watson_

      Eh, I did read the study. Exposure assessment was conducted using a single FFQ conducted 5 years after the initiation of the original longitudinal cohort. They then linked that to routine medical data for mortality outcomes 10-15 years later

      3 replies 0 retweets 4 likes
    6. Alan Watson‏ @Alan_Watson_ 31 Jan 2020
      Replying to @GidMK @dnunan79

      Which is not what you described your tweet above. There were three questionnaires, the first in 1990, the second 1995 (for 14-28 days) & then a ten year version - these included seasonal adjustment and cross checking statistical analysis In total the study was 22 (not 10) yrspic.twitter.com/Y4rN7P0DKR

      1 reply 0 retweets 0 likes
    7. Health Nerd‏Verified account @GidMK 31 Jan 2020
      Replying to @Alan_Watson_ @dnunan79

      Read that again. They validated the FFQ using a subset who completed dietary diaries as well. They didn't use the 0 years or 10 year data, because the FFQS were different. The length of the entire longitudinal cohort is immaterial, they didn't use all the data

      1 reply 0 retweets 0 likes
    8. Alan Watson‏ @Alan_Watson_ 31 Jan 2020
      Replying to @GidMK @dnunan79

      You claimed that "they ask people what they eat (once)" - they did it 3 x, & checked over an extended period too then assessed the soy intake vs the 10 year questionnaire. The length of the cohort is relevant if only because you had claimed it was 10 years - it clearly wasn't.pic.twitter.com/h7HcSBVOXL

      1 reply 0 retweets 0 likes
    9. Health Nerd‏Verified account @GidMK 31 Jan 2020
      Replying to @Alan_Watson_ @dnunan79

      Sigh. They didn't use the 10-year data to calculate exposure, they checked correlation between the two. And 0.42 is very low, which actually supports my argument - obviously, the exposure changed a lot I said 10-15 years - from the 5 year to the 20th year, depending on death

      1 reply 0 retweets 0 likes
      Health Nerd‏Verified account @GidMK 31 Jan 2020
      Replying to @GidMK @Alan_Watson_ @dnunan79

      They "checked it 3x" but only USED a single measure in the analysis, so it doesn't matter what other data they collected. Anyway, I remember why I muted you in the first place, farewell

      3:43 PM - 31 Jan 2020
      0 replies 0 retweets 0 likes

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