Investigating causality in the association between vitamin D status and self-reported tiredness, 2019, Havdahl et al

All of authors are from University of Bristol and include Crawley's mate, George Davey Smith. ME gets mentioned a number of times.

Open access at https://www.nature.com/articles/s41598-019-39359-z

Starting to build a narrative that our fatigue isn't anything out of the ordinary?

 

Hasn't the BPS crew been saying this a while now?

 

"Self-reported tiredness".

Whenever I see "self-reported", I think insurance speak.

As for self-reported tiredness, I am not familiar with any other kind.

 

" substantial current fatigue on the widely used self-rated Chalder fatigue questionnaire"

Widely used by whom?

 

His history with Crawley/PACE means that I don't trust Davey-Smith to do any work in this area, but that abstract looked okay aside from the Chalder fatigue scale, which is probably what was just included with the data.

I hadn't seen people claiming that low vitamin D was a common cause of fatigue though, and any recommendations I'd seen about vitamin D and CFS were about the danger of CFS leading to low vitamin D when people are largely housebound.

 

I seem to recall, about 10 or so years ago, a map was put out there that compared MS and Vitamin D deficiency prevalence throughout the world with CFS and Vitamin D deficiency prevalence.

That was a long time ago, so perhaps I am mis-remembering.

If they are beginning to promote the idea that ME/CFS symptoms, piecemeal and irrespective of severity, are "normally" distributed throughout the population, I'd observe they are not the first to this dance (albeit with a different disease); it is concerning nonetheless.

 

Chalder, she rates it highly..

 

So she's very, very tired of it?

So self reported means people are lying malingering gits , but self rated means they aren't?