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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. Ilya Kashnitsky‏ @ikashnitsky 15 Nov 2020

      Based on these flawed calculations, the authors proceed to an even more questionable comparison of the YLL due to the lockdown school closures and YLL due to the direct COVID19 deaths through 30 May 2020. ~25m kids aged 5–11 vs 88k c19 deaths of the ongoing pandemic. Really? /16

      1 reply 2 retweets 28 likes
      Show this thread
    2. Ilya Kashnitsky‏ @ikashnitsky 15 Nov 2020

      There are many more issues with the assumptions and the analysis. See many of them, in the linked thread by @GidMK 👆 /17

      1 reply 1 retweet 23 likes
      Show this thread
    3. Ilya Kashnitsky‏ @ikashnitsky 15 Nov 2020

      Through these very problematic (to frame it nicely) assumptions and correspondingly shaky results the authors arrive at the very big conclusions claiming that their paper provided sufficient evidence to keep the schools open. It did not. /18

      1 reply 1 retweet 35 likes
      Show this thread
    4. Ilya Kashnitsky‏ @ikashnitsky 15 Nov 2020

      Such policy recommendations are 👉downright irresponsible👈 and, if heard and implemented, are ☠️very dangerous☠️ /19pic.twitter.com/4ePMe7iOOv

      Population Europe
      1 reply 2 retweets 63 likes
      Show this thread
    5. Ilya Kashnitsky‏ @ikashnitsky 15 Nov 2020

      Ilya Kashnitsky Retweeted Per Engzell

      I need to mention: I came across this paper featured by @ProfEmilyOster (61.2k followers) and re-tweeted non-critically by @pengzell who wrote a brilliant paper w/ @MarkDVerhagen and @ArunFrey on the drop in school performance due to the pandemic 👇 /20https://twitter.com/pengzell/status/1322796588746575872 …

      Ilya Kashnitsky added,

      Per Engzell @pengzell
      Schools remain open with new lockdown measures in England, Germany, France. Have governments lost their mind? Our study suggests not: even with excellent infrastructure, children learn next to nothing from home. https://twitter.com/ArunFrey/status/1321796975013044224 …
      2 replies 1 retweet 33 likes
      Show this thread
    6. Ilya Kashnitsky‏ @ikashnitsky 15 Nov 2020

      Ilya Kashnitsky Retweeted Dimitri Christakis

      It would be nice to hear your thoughts on my critical review. I'd also appreciate to hear from the authors: @DAChristakis @drwilvancleve @Zimmermanfred Especially since the main author considers the piece one of the most important work ever /21 FINhttps://twitter.com/DAChristakis/status/1326922136095617024 …

      Ilya Kashnitsky added,

      Dimitri Christakis @DAChristakis
      This is some of my most important work. Sadly, it comes too late for too many. I still hope it reframes the dialogue going forward. https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2772834 …
      10 replies 2 retweets 43 likes
      Show this thread
    7. Ilya Kashnitsky‏ @ikashnitsky 16 Nov 2020

      Here is a bonus from eSupplement. This is how the crucial risk ratio of 0.75 was estimated from the 7 studies. Am I the only one seeing this averaging weird: 5 EU studies w/ odds close to 1 + 2 US studies w/ broad uncertainty = 0.75 ??? 🙏 asking opinion of meta- researchers /22pic.twitter.com/iJe7ZMpvw7

      Dan Quintana, James Heathers, Lutz Bornmann and 3 others
      1. Dan Quintana @dsquintana

      2. James Heathers @jamesheathers

      3. Lutz Bornmann @lutzbornmann

      4. Health Nerd @GidMK

      5. Michaël Boissonneault @michaelboiss

      6. Radoslaw Panczak @RPanczak

      6 replies 1 retweet 34 likes
      Show this thread
    8. Health Nerd‏Verified account @GidMK 16 Nov 2020
      Replying to @ikashnitsky @dsquintana and

      Oh yeh that's odd. They artificially doubled the weight of the US study estimates with no real justification. Also, did they use a fixed effects model?

      1 reply 0 retweets 9 likes
    9. Health Nerd‏Verified account @GidMK 16 Nov 2020
      Replying to @GidMK @ikashnitsky and

      Ok, redid the analysis. I think they've actually just weighted it arbitrarily themselves, here's the random-effects model with inverse-variance weighting. Increases the RR from 0.75 to 0.95!pic.twitter.com/p6sUm6nc1D

      4 replies 4 retweets 29 likes
    10. Health Nerd‏Verified account @GidMK 16 Nov 2020
      Replying to @GidMK @ikashnitsky and

      This actually makes WAY more sense to me. An 0.75 reduction PER YEAR of schooling on all-cause mortality would mean that missing a few years of school would nearly halve your life expectancy

      3 replies 0 retweets 12 likes
      Health Nerd‏Verified account @GidMK 16 Nov 2020
      Replying to @GidMK @ikashnitsky and

      It also makes more sense given those confidence intervals. The original model they used is nearly 50% based on the two studies with the widest confidence bounds, with the more precise studies having a nearly 0% weighting!

      1:10 AM - 16 Nov 2020
      • 11 Likes
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      0 replies 0 retweets 11 likes

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