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NoahHaber's profile
Noah Haber
Noah Haber
Noah Haber
@NoahHaber

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Noah Haber

@NoahHaber

Mediocre econ, epi, stats, meta, causal inference mutant scientist championing uncertainty and producing sawdust. Chaotic good, learning to be chaotic better

United States
metacausal.com
Joined December 2011

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    1. Noah Haber‏ @NoahHaber 18 Sep 2020

      We have reached out via e-mail twice to the DMJ since September 8 with regards to our letter to the editor, and have not yet received a response.

      1 reply 1 retweet 5 likes
      Show this thread
    2. Noah Haber‏ @NoahHaber 6 Oct 2020

      An update: We have gotten in touch with the DMJ editors, and expect our letter to be published in the near future. Strangely, the rumors of the trial results being published imminently appear to be inaccurate; we have seen no such publication.

      1 reply 1 retweet 10 likes
      Show this thread
    3. Noah Haber‏ @NoahHaber 8 Oct 2020

      The DMJ editors have informed us that they are waiting for Bundgaard et al to draft a response letter, expected at the end of October, at which time they will publish our letter and their response simultaneously.

      2 replies 1 retweet 7 likes
      Show this thread
    4. Noah Haber‏ @NoahHaber 22 Oct 2020

      Bumping this thread, as it appears as though public interest in this study is increasing rapidly. I want to emphasize: We have no connection to this study except through publicly released registration and design description, which we sincerely thank the authors for providing.

      1 reply 1 retweet 20 likes
      Show this thread
    5. Noah Haber‏ @NoahHaber 22 Oct 2020

      We have not seen results; have not had contact with any journal editors with regard to this study except our letter (below); have no inside or private information about its results or design details; have no financial, institutional, or social links to this study, etc.

      1 reply 1 retweet 12 likes
      Show this thread
    6. Noah Haber‏ @NoahHaber 22 Oct 2020

      We strongly recommend reading our short (500 word) critique in full, as we address several distinct issues with the study design. https://pubpeer.com/publications/47865E80A829070D6D64DDB57F3A70 … It will hopefully appear in DMJ soon alongside a reply from the study authors, which we look forward to reading.

      1 reply 4 retweets 23 likes
      Show this thread
    7. Noah Haber‏ @NoahHaber 22 Oct 2020

      I should note that - while being underpowered is a serious concern - the most important issues are with the intervention as implemented (messaging + free masks), outcome (not source control), framing, and mechanisms which bias results toward the null, as outlined in the letter.

      3 replies 2 retweets 24 likes
      Show this thread
    8. Noah Haber‏ @NoahHaber 24 Oct 2020

      Minor update: We found and corrected a small error (wrote "odds" instead of "risk," and yes, those who have worked with or followed me might note the irony in that mistake). It's now corrected.

      1 reply 0 retweets 6 likes
      Show this thread
    9. Noah Haber‏ @NoahHaber 27 Oct 2020

      Medium-sized update: The editors at DMJ have informed us that our letter and the response letter from the DANMASK-19 author team is expected to be published next week. We look forward to reading the response and thank the authors for their engagement in this complicated issue.

      1 reply 4 retweets 12 likes
      Show this thread
    10. Noah Haber‏ @NoahHaber 11 Nov 2020

      Our letter and the response are now published in DMJ. We sincerely appreciate the authors and DMJ's editors for engaging with the complicated topic Our letter is available here: https://ugeskriftet.dk/dmj/letter-concern-regarding-reduction-covid-19-infection-using-surgical-facial-masks-outside-healthcare … Bundgaard et al's response is here:https://ugeskriftet.dk/dmj/response-letter-concern-regarding-reduction-covid-19-infection-using-surgical-facial-masks-outside …

      3 replies 4 retweets 19 likes
      Show this thread
      Noah Haber‏ @NoahHaber 18 Nov 2020

      The DANMASK-19 trial is now published in Annals of Internal Medicine, alongside two editorials which discuss its limitations. DANMASK-19 trial https://www.acpjournals.org/doi/10.7326/M20-6817 … Frieden editorial: https://www.acpjournals.org/doi/10.7326/M20-7499 … Laine editorial: https://www.acpjournals.org/doi/10.7326/M20-7448 …pic.twitter.com/q6zwbrNhfi

      7:11 AM - 18 Nov 2020
      • 33 Retweets
      • 74 Likes
      • Naima zakaria Alan Yoshioka, PhD Oliver Marler Claire Merci noa-witheringly Austin Ariail Saloni Consider Going Outside Buckeye_0399
      3 replies 33 retweets 74 likes
        1. New conversation
        2. Noah Haber‏ @NoahHaber 18 Nov 2020

          The results line up neatly with our predictions, and the limitations sections clearly outline the major issues which we documented in September. I strongly recommend reading the editorials, which provide substantial and important context.

          1 reply 4 retweets 24 likes
          Show this thread
        3. Noah Haber‏ @NoahHaber 18 Nov 2020

          Note that our only opinion regarding its publication is/was: "Ideally, this study should be published in such a way that helps ensure that everyone understands the flaws and limitations of its design before they make conclusions on its results." (sent to @SergioEfe on Nov 12)

          2 replies 1 retweet 22 likes
          Show this thread
        4. Noah Haber‏ @NoahHaber 18 Nov 2020

          That appears to have been achieved as well as is possible within the context of our publication system, to the credit of the editors at @AnnalsofIM, the peer reviewers, the authors of the trial, and the authors of the two editorials.

          3 replies 1 retweet 18 likes
          Show this thread
        5. Noah Haber‏ @NoahHaber 18 Nov 2020

          For those who are entering this thread from the middle: we initially wrote and submitted our concerns about its design in early September in response to the published design, months before the results were available. Our letter is available here:https://ugeskriftet.dk/dmj/letter-concern-regarding-reduction-covid-19-infection-using-surgical-facial-masks-outside-healthcare …

          2 replies 2 retweets 13 likes
          Show this thread
        6. Noah Haber‏ @NoahHaber 19 Nov 2020

          Worth noting: the language and framing of trial changed drastically between the published protocol and the published results. The framing in the published version is MUCH more accurate and clearer, (correctly) emphasizing that the intervention is messaging, not mask wearing.

          0 replies 0 retweets 11 likes
          Show this thread
        7. End of conversation
        1. New conversation
        2. Dorthe Jensen‏ @DortheJ56641891 18 Nov 2020
          Replying to @NoahHaber

          It is now on the news (TV2) in Denmark "Breaking: New study can not confirm, that masks protect against corona." It is terrible, because, now people everywhere will think, that science does not support mask wearing. And this is not the case at all.

          1 reply 0 retweets 18 likes
        3. N A Nielsen‏ @NielsANielsen 18 Nov 2020
          Replying to @DortheJ56641891 @NoahHaber

          N A Nielsen Retweeted Andreia Rodrigues #WearAMask

          But right up Tegnells and the Swedish governments lane.... I really hope people see this study for what it is. A useless study of an effect (almost) nobody claimed existed.https://twitter.com/AndreiaSaveSwe/status/1328812490910785543?s=19 …

          N A Nielsen added,

          Andreia Rodrigues #WearAMask @AndreiaSaveSwe
          Here comes the Swedish passive-aggressive way of dealing with things https://twitter.com/strandhall/status/1328790236403527680 …
          1 reply 2 retweets 6 likes
        4. Show replies
        1. Catherine Osborne‏ @ozzycat61 18 Nov 2020
          Replying to @NoahHaber

          Why publish this study at all? You've ensured that its highly questionable methodology and enormous limitations will be ignored by the media and its specious findings used by anti-maskers. And no one was claiming a non-N95-type mask protected wearers. So, WHY?

          0 replies 1 retweet 13 likes
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