I thought I'd look at this paper in a little bit more detail because, well, there are some pretty big issues Let's do some peer-review on twitter!https://twitter.com/GidMK/status/1303539430024568832 …
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This diagram implies that of the patients who were screened for the study (PCR+, pneumonia on radiograph, clinical infection) 100% were enrolled 100% of those patients were randomized 100% took the treatment as assigned 100% were followed up until the end of the study
Now, I don't know if that is entirely unheard of, but thus far I have never seen such perfect numbers. Even other in-hospital trials of drugs for COVID-19 have a handful of patients drop out (or at least 1 patient screened who was not eligible!)
Also, the control group had higher levels of hypertension and diabetes compared to the intervention group. This is acknowledged by the authors as a limitation, and is definitely not ideal when making conclusions based on the resultspic.twitter.com/XM3KjauodY
It is entirely possible - perhaps even likely - that one of these potential sources of bias influenced the eventual results. A study like this would be rated as at a "very high" risk of bias in most formal assessments
I think most scientists would just read this as a tiny pilot study, and await better data That's certainly my opinion - there are too many potential sources of bias here to make any solid conclusions
Unfortunately, it is the age of COVID-19, so this study has instead gone viral on social media and is being used to recommend that people take vitamin D supplements Such is the way of 2020
I should also mention that this is not in any way an indictment of the study's authors. This was clearly meant to be a pilot study, and should be read as such It is just a shame that people have instead sensationalized the research
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