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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. Alasdair Munro‏Verified account @apsmunro Sep 1

      The worlds biggest study of post acute #COVID19 symptoms in children is out as a pre-print - the CLoCK study! Fortunately results are very reassuring regarding symptom frequency and impact Some important lessons, let's take a look 🧵 1/https://www.bbc.co.uk/news/health-58410584 …

      81 replies 869 retweets 1,927 likes
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    2. Alasdair Munro‏Verified account @apsmunro Sep 1

      The study compared people who tested positive for SARS-CoV-2 to those who tested negative They looked at symptoms at the time of testing, and then 3 months later The differences are then presumably due to one group having covid They surveyed children aged 11 - 17 2/

      3 replies 14 retweets 162 likes
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    3. Alasdair Munro‏Verified account @apsmunro Sep 1

      What did they find? At time of testing, 35% of test positives had symptoms compared to only 8% of test negatives Astoundingly, 3 months later 67% of test positives had any symptoms, and *53% of test negatives* had symptoms 3/

      7 replies 39 retweets 245 likes
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    4. Alasdair Munro‏Verified account @apsmunro Sep 1

      This is why studies of persistent symptoms after covid which don't have a control group are almost completely useless Over HALF of children who didn't have SARS-CoV-2 had symptoms 3 months later (despite only 8% having symptoms at baseline!) These symptoms are SO common 4/

      16 replies 127 retweets 584 likes
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    5. Health Nerd‏Verified account @GidMK Sep 1
      Replying to @apsmunro

      I agree that the study is biased and it's hard to draw causal conclusions, but this tweet seems pretty misleading. An absolute increase of shortness of breath for 3 months of 13%, for example, would be pretty massive in these age groups!

      1 reply 3 retweets 11 likes
      Health Nerd‏Verified account @GidMK Sep 1
      Replying to @GidMK @apsmunro

      I mean, yes these symptoms are common, but these absolute increases are HUGE. 12% higher anosmia? an extra 13% experiencing SoB? Probably an overestimate, but I don't see why having a high baseline would make that less worryingpic.twitter.com/i8HLTRiKse

      3:50 PM - 1 Sep 2021
      • 1 Retweet
      • 8 Likes
      • Cub, et cetera. Lisa Jensen Erin Downes VMD Daniel Glez-Peña Steffen Hannover David Postcards from the burbs.... 💉💉Funestolo ⛏🐭
      4 replies 1 retweet 8 likes
        1. LIndenArden‏ @inden_l Sep 1
          Replying to @GidMK @apsmunro

          Damn good point, imho.

          0 replies 0 retweets 1 like
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        2. Martijn de Riet‏ @mdradvies Sep 1
          Replying to @GidMK @apsmunro

          What I'm wondering about: if you assume the "positive group" is an overestimate due to small percentage response and ppl more likely to respond when experiencing symptoms, why wouldn't the control group have the same overestimate? Surely the same caveats apply to them?

          1 reply 0 retweets 1 like
        3. Health Nerd‏Verified account @GidMK Sep 1
          Replying to @mdradvies @apsmunro

          Potentially. The issue is that it's an unknown bias with unknown impacts - could run in either direction, we can't assume it's non-differential

          1 reply 0 retweets 3 likes
        4. Show replies
        1. Daniel Glez-Peña‏ @lipido Sep 1
          Replying to @GidMK @apsmunro

          It would be also interesting to add another baseline: flu, commond cold...

          0 replies 0 retweets 1 like
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        1. Morr_is‏ @morr_is Sep 2
          Replying to @GidMK @apsmunro

          Plus loss of smell is not common at all.

          0 replies 0 retweets 0 likes
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