Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.
  • Home Home Home, current page.
  • About

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
GidMK's profile
Health Nerd
Health Nerd
Health Nerd
Verified account
@GidMK

Tweets

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

Tweets

  • © 2021 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    1. Health Nerd‏Verified account @GidMK Jun 7

      Headlines: vegetarian diets prevent severe COVID! Study: cross-sectional survey-based investigation of an online sample of healthcare workers shows some interesting associations The headlines are wildly silly 1/npic.twitter.com/MzXS7HUVey

      4 replies 11 retweets 65 likes
      Show this thread
    2. Health Nerd‏Verified account @GidMK Jun 7

      2/n The study is here, and fun for a quick read. Basically, a group of researchers surveyed healthcare workers in July-Sept 2020 and asked them stuff about their diet and COVIDhttps://nutrition.bmj.com/content/early/2021/05/18/bmjnph-2021-000272 …

      2 replies 1 retweet 11 likes
      Show this thread
    3. Health Nerd‏Verified account @GidMK Jun 7

      3/n This appears to be the 3rd or 4th study published from that survey. The authors basically found that, after controlling for a couple of confounders, there was an association between self-reported diet and risk of severe COVID-19pic.twitter.com/D1KzChML6N

      1 reply 1 retweet 8 likes
      Show this thread
    4. Health Nerd‏Verified account @GidMK Jun 7

      3.5/n (As a minor bugbear, the authors report this as a case-control study but that's not true because they didn't identify their participants based on COVID-19 status they just recruited healthcare workers to do their survey so it should be called a cross-sectional cohort)pic.twitter.com/sGVLc0dcYp

      1 reply 1 retweet 14 likes
      Show this thread
    5. Health Nerd‏Verified account @GidMK Jun 7

      4/n Anyway, regardless of the study type, it definitely doesn't support the headlines Firstly, there's the population. This study was almost exclusively comprised of middle-aged, white doctorspic.twitter.com/hX9S5uFJh0

      1 reply 2 retweets 12 likes
      Show this thread
    6. Health Nerd‏Verified account @GidMK Jun 7

      5/n We can quibble about generalizability, but as a general rule if ~80% of your population is a single very specific demographic, it's hard to say much about populations based on that sample

      1 reply 1 retweet 14 likes
      Show this thread
    7. Health Nerd‏Verified account @GidMK Jun 7

      6/n Secondly, there's the issue with unmeasured confounding. The study only asked people about a small number of covariates, but there are ~dozens~ of potentially important things that this could've missedpic.twitter.com/8mcUQEyQvQ

      1 reply 1 retweet 12 likes
      Show this thread
    8. Health Nerd‏Verified account @GidMK Jun 7

      7/n Ignoring the obvious things like income, we might be worried that level of exposure to COVID-19 cases could cause people to have a higher risk of COVID-19, but that information wasn't included in the model

      1 reply 1 retweet 14 likes
      Show this thread
    9. Health Nerd‏Verified account @GidMK Jun 7

      8/n There's also some indications in the study itself that the survey data (collected online) might not be very good as well For example, of the 568 people who report having COVID-19, 33% say that they had a NEGATIVE COVID-19 testpic.twitter.com/RvMDkRoQQL

      1 reply 1 retweet 12 likes
      Show this thread
      Health Nerd‏Verified account @GidMK Jun 7

      8.5/n This may have been because the definition of a COVID-19 'case' used in the study is very broad. It appears that anyone with any symptoms consistent with COVID-19 would be a case here, regardless of testingpic.twitter.com/kDd0sOTOz3

      8:34 PM - 7 Jun 2021
      • 1 Retweet
      • 9 Likes
      • netunizada Gabriel Moreira Flavia Enough is ENOUGH Leesa 'soapy clean hands' Klich, MSc 🇨🇦 Stormageddon, Dark Lord of All Lauren Maharaj Dave DuPlantis Liz "The Mask Goes Over Your Nose AND Mouth" Ditz
      1 reply 1 retweet 9 likes
        1. New conversation
        2. Health Nerd‏Verified account @GidMK Jun 7

          9/n When the researchers excluded these PCR-negative cases from their model, the statistically significant association between vegetarian diets largely disappeared 👀👀👀pic.twitter.com/JUR4CP24UH

          1 reply 1 retweet 23 likes
          Show this thread
        3. Health Nerd‏Verified account @GidMK Jun 7

          10/n Anyway, the headlines saying that vegetarian diets reduce the risk of severe COVID-19 are rather ridiculous. This study just can't prove that

          1 reply 4 retweets 17 likes
          Show this thread
        4. Health Nerd‏Verified account @GidMK Jun 7

          11/n A better headline might be "middle-aged white doctors who report eating vegetarian diets at slightly reduced risk of reporting COVID-19 symptoms, study suggests" Not quite as impressive, perhaps, but a bit more accurate

          1 reply 5 retweets 40 likes
          Show this thread
        5. Health Nerd‏Verified account @GidMK Jun 7

          12/n Oh, also, forgot to mention that the headline "73%" reduced risk is a relative risk, if you calculate the absolute risk difference for severe COVID-19 between the vegetarians and everyone else it works out to be about 4% so there's that too

          1 reply 1 retweet 24 likes
          Show this thread
        6. End of conversation

      Loading seems to be taking a while.

      Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

        Promoted Tweet

        false

        • © 2021 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Cookies
        • Ads info