BC HEALTH
Saved by @jacobhtml

Folks, we need to talk about this Vitamin D trial. I have no stake in this game - take Vitamin D if you want but this pre-print is super sus.

The paper is presented as a randomized trial of vitamin D supplementation in hospitalized patients with COVID. Interesting and important question! And the results appear dramatic:
If true, this would be one of (if not THE most) effective treatments for COVID. But there are problems...
The first clue something is up is that the randomized groups aren't the same size:
It took me a while to figure out why this was, then I saw in the text that INDIVIDUALS were not randomized, WARDS in the hospital were.
OK - 8 wards, 5 randomized to Vitamin D, 3 to usual care. (Why not 4 and 4?? - but whatever). So this is actually a CLUSTER-randomized trial. That means you need to use CLUSTERED statistics to analyze it. They do not.
This is a big problem. But there is more. It seems that, even if the wards were randomized, the PATIENTS weren't randomized to the wards.
In other words, some hospital wards take different patients than others (different risk factors, etc). This is why we see this really weird finding in Table 1:
Baseline vitamin D levels dramatically lower in the "non-treated" group. Why? Preseumaby because different types of people got admitted to the wards than were randomized to usual care.
You'd expect people with low levels of Vitamin D to do worse - that has been shown multiple times - perhaps because higher Vitamin D levels are associated with less comorbidities.
Here's their Kaplan-Meier curve. It doesn't make sense. What do they mean by 'cumulative hazard' of mortality? What units are these? The overall mortality was 10% by their report.
I get frustrated with peer-review too, but this is why it's so important. This is super basic stuff - you don't call your study a randomized trial when it's a cluster randomized trial. And peer-reviewers would 100% have asked them to go back and redo the stats.
The authors could solve this, btw, by releasing a de-identified dataset (including the ward number) for this study. We could analyze it in about an hour at least for topline results using appropriate stats.
And again, is there harm from Vitamin D? Minimal honestly. The harm from promotion of studies like this is tweets like this that try to dissuade people from getting vaccinated and doing other protective measures.
https://t.co/XVmsiajpBr
So please, read skeptically. Pre-prints have been a boon in COVID times but this study is just... not well done. Be aware. (/END)

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🚨New lockdown regulations just published, in force tomorrow

The Health Protection (Coronavirus, Restrictions) (No. 3) and (All Tiers) (England) (Amendment) Regulations 2021

https://t.co/L5jwlTDaIE

(Thread)


These are not a new set of regulations: they are amendments an old set of regulations

Which we thought were gone! But they are back

Welcome back No.3 regulations

A quick thing before we continue!

I have been analysing these laws for free for 9 months now - if you want to say thanks and have a few £ to spare please give to my @LawCentres fundraiser

They give free legal advice to people who need it

They also amend the All Tiers regulations

Oh god it's all amendments by paragraph references

Basically all of England now in Tier 4 and Tier 4 is amended but not by a huge amount

This really is a terrible way to make laws on the fly - who can possibly understand it?!


So, to explain, you need 2 documents open if you want to understand what is going on:

All Tiers regulations (Tiers 1-4, 2 December as amended) https://t.co/IraPQ112ak

And amendments https://t.co/L5jwlTDaIE

No sensible way of doing except by track changes, on it now, back soon
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Slay Jr
Slay Jr
@ItDiscovers
Ankle joint is undertrained in a single joint means in both the frontal plane & in dorsiflexion 2 prevent lateral ankle sprains and shin splints. Single joint exercises allows you to evaluate the joint actions ROM & strength to understand injury risk & where development is needed


AJ Abduction (Cutting)

1. I pull the foot in2 dorsiflexion 2 stabilize the joint

2. I pull against the increasing tension of the band in2 abduction w/o losing dorsiflexion & also w/o externally rotating the thigh.

3. On the negative resist the bands pull eccentrically.


AJ Adduction (Cutting)

1. I pull the foot into dorsiflexion and I pull the foot into adduction against the tension of the band w/o medial rotation of the thigh.

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Dinesh S. Thakur
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This is a limited point about availability of efficacy data for vaccines under development in the context of the approval for CovidShield and Covaxin in India.

There have been many so-called experts on the idiotbox opining about apparent availability of P III data which 1/n

2/n apparently the SEC had access to based on which it "supposedly" approved Covaxin. Another argument that is prevalent is other regulators (US FDA and MHRA) also approved vaccines based on P II data alone. Let me give you a few facts so that you can make your own decision.

3/n The protocols for both mRNA vaccines are publicly available. You can check. Both protocols *define* when the interim analysis will be done. This is not subjective. They clearly define how many infections need to be documented before the Data Safety Monitoring Board meets.

4/n Find the protocols for the bridging study for CovidShield and Covaxin and look for a similar milestone.

Here is one set of efficacy data post the interim analysis of a mRNA vaccine.

Source: https://t.co/BAPnP3PxEb


5/n This data was analyzed post the interim analysis where the blind was broken by the DSMB. Now ask yourself this question:
How does the SEC, or the sponsor of these studies, or the experts who are offering their opinion liberally on the idiotbox know what the efficacy is
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Gadi Schwartz
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@GadiNBC
ADHD, a thread (1)
If you have #ADHD & are struggling please know you’re not alone. This week on @Overview, we're talking about living w/ ADHD & Anxiety during the pandemic & many the stigmas & misconceptions that making things worse.

I was diagnosed w/ ADHD when I was 7. And in so many ways it’s been a blessing. I love my energy, the hyper-focus, the calm I feel in chaos, the ability to & feel emotions so intensely. It’s allowed me to to see the world differently be in a constant state of wonder.(2)

But realizing all that has been a long, difficult journey so figured I’d share some of my own struggles as well as the resources from @HowtoADHD because Jessica's channel has been a game-changer for me.(3)

First off, #ADHD Attention Deficit Hyperactivity Disorder is a dumb description. It implies a deficit in attention & always hyper people. ADHD is a spectrum, & what we all have in common isn’t that we can’t pay attention. It’s that we have trouble controlling our attention.(4)

There are amazing analogies out there, like trying to watch 6 TV’s at once when someone else controls the remote. Or like driving a race car on city streets and spinning out whenever you try to turn.
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Santiago
Santiago
@svpino
You gotta think about this one carefully!

Imagine you go to the doctor and get tested for a rare disease (only 1 in 10,000 people get it.)

The test is 99% effective in detecting both sick and healthy people.

Your test comes back positive.

Are you really sick? Explain below 👇

The most complete answer from every reply so far is from Dr. Lena. Thanks for taking the time and going through


You can get the answer using Bayes' theorem, but let's try to come up with it in a different —maybe more intuitive— way.

👇


Here is what we know:

- Out of 10,000 people, 1 is sick
- Out of 100 sick people, 99 test positive
- Out of 100 healthy people, 99 test negative

Assuming 1 million people take the test (including you):

- 100 of them are sick
- 999,900 of them are healthy

👇

Let's now test both groups, starting with the 100 people sick:

▫️ 99 of them will be diagnosed (correctly) as sick (99%)

▫️ 1 of them is going to be diagnosed (incorrectly) as healthy (1%)

👇
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My new theory: A lot of it is guilt.

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Always. No, your company is not an exception.

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Listen to Aditya


And by the way, you should never be worried that an offer would be withdrawn if you politely negotiate.

I have seen this happen *extremely* rarely, mostly to women, and anyway is a giant red flag. It suggests you probably didn’t want to work there.

You wish there was no negotiating so it would all be more fair? I feel you, but it’s not happening.

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An interesting story of Kamala Devi hazarika for all Sanatanis...🙏

A Xtian missionary was sent to Assam for the promotion of religion. His name was Cruz. He came across to one the boys from an influential family in Assam to teach him English.
@noconversion

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The p@stor began to tell Grandma the stories of how J€$u$ cured leprosy of lepers, how He gave sight to the blind, etc..But after listening to him, the strong Sanatani grandmother said. A stone turned into a living woman (Ahalya) for our Rama when he touched the stone.

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She spoke of Rama setu where stones floated in sea just by writing his name on the stones and that they are still floating today.
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RISHI PINGALA:THE ANCIENT INDIAN SAGE DISCREDITED FOR HIS MAJOR CONTRIBUTIONS TO MATHEMATICS & PHI

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