so you’d expect to see fewer cases the further south go. I wonder how that holds up?
Many homeless/sick move south so rates between regions may be affected.
Prevalence of vitamin D deficiency in adults admitted to psychiatric hospital
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Re: Prevalence of vitamin D deficiency in adults admitted to psychiatric hospital
#22Something worth noting is that many mental illnesses cause symptoms (lack of motivation, social anxiety, fear of leaving the house, etc.) that make people less likely to go outside.
Sadly you can't affirm that to all of the affected population, that needs testing. Some mentally ill people like to go out and walk mindlessly all day long. I am sure you know some 'walkers' in your vicinity, there's always one.
Re: Prevalence of vitamin D deficiency in adults admitted to psychiatric hospital
#23Weird question: i saw an article yesterday saying that redheads naturally produce more vitamin d.
So, what is the prevalence of redheads in psychiatric hospitals?
Re: Prevalence of vitamin D deficiency in adults admitted to psychiatric hospital
#24If you are over 60, get your vitamin D blood levels checked! Made a big difference for me, simply increasing dose
Re: Prevalence of vitamin D deficiency in adults admitted to psychiatric hospital
#25This is close to the rate of vitamin D deficiency in the general population, e.g. https://www.ncbi.nlm.nih.gov/pubmed/21310306
The study you linked was based on a threshold of 50 nmol/L, while the originally posted study used two thresholds, 30 nmol/L and 50 nmol/L. At the 50 nmol/L cutoff, the study you linked indicates a deficiency rate of 41.6% for the general population, compared to a rate of 91.3% among psychiatric patients according to the posted study. I’d still take the posted study with a grain of salt. Vitamin D deficiency between…
More important difference: the base rate in the grandparent post is for the US, while the psychiatric hospital admission study is for hospitals in the UK. Serum vitamin D depends significantly on sunlight exposure and hence latitude, so the base rate is different there.
Re: Prevalence of vitamin D deficiency in adults admitted to psychiatric hospital
#26This is close to the rate of vitamin D deficiency in the general population, e.g. https://www.ncbi.nlm.nih.gov/pubmed/21310306
The study you linked was based on a threshold of 50 nmol/L, while the originally posted study used two thresholds, 30 nmol/L and 50 nmol/L. At the 50 nmol/L cutoff, the study you linked indicates a deficiency rate of 41.6% for the general population, compared to a rate of 91.3% among psychiatric patients according to the posted study. I’d still take the posted study with a grain of salt. Vitamin D deficiency between…
Good points. Here is some data on vitamin D deficiency in the UK (where the original study was conducted) that also addresses seasonality: https://www.bjfm.co.uk/prevention-of-vitamin-d-deficiency
"Low serum levels of vitamin D are found in significant numbers of all population groups in the UK: in winter 30-40% of all age groups in the general population are classed as vitamin D deficient. Even towards the end of summer 8% of adults and 13% of adolescents remain deficient."
where deficient is defined as < 25 nmol/L of 25(OH)D
Re: Prevalence of vitamin D deficiency in adults admitted to psychiatric hospital
#27Earlier quoted context omitted.
The study you linked was based on a threshold of 50 nmol/L, while the originally posted study used two thresholds, 30 nmol/L and 50 nmol/L. At the 50 nmol/L cutoff, the study you linked indicates a deficiency rate of 41.6% for the general population, compared to a rate of 91.3% among psychiatric patients according to the posted study. I’d still take the posted study with a grain of salt. Vitamin D deficiency between…
Regarding the weather: most people most often stay indoors or in cars(does the glass filter the Vitmain-D causing rays), and usually wear long pants and a shirt, so only a small body area is exposed to the sun, so it's possible that even in summer, people suffer from Vitamin-D deficiency.
Yeah, absolutely - most regions probably have a nonzero population with Vitamin D deficiency year-round. But if I had to pick a place and time at which the overall rate of Vitamin D deficiency is high, the UK in February through April seems like a safe bet.
Re: Prevalence of vitamin D deficiency in adults admitted to psychiatric hospital
#28So people locked indoors who can't see the sun have a vitamin D deficiency? Shocking...
Re: Prevalence of vitamin D deficiency in adults admitted to psychiatric hospital
#29People who are admitted to mental hospitals don't spend much time out in the sun or eat healthy diets? Fascinating.
Re: Prevalence of vitamin D deficiency in adults admitted to psychiatric hospital
#30As these kind of stories are so popular on HN, I recently started curating a list at https://github.com/Jimnotgym/Hacking_Depression
I hope it helps someone one day.