Also, what's the base rate of developing an anxiety disorder?
NIH says:
> An estimated 19.1% of U.S. adults had any anxiety disorder in the past year.
https://www.nimh.nih.gov/health/statistics/any-anxiety-disor...
That's pretty high already, and I imagine the base rates for anxiety developing among "people who have to be hospitalized for any reason" are much higher than the general pop.