I wrote not long ago about the problem with sleep-deprived doctors. Now I feel I must tell you that the person you are relying upon to perform delicate surgery may be so depressed that he’s contemplating suicide.
Why surgeons? I used to be one and maybe I can shed some light.
Of course you can’t prove causality. Maybe just the fact that a person is a surgeon doesn’t mean he is at risk. The same statement about “we can’t tell if there is something causing this or if this is an epiphenomenon” can be a criticism of almost any study, the way those invited to critique this study have spoken.
There is a problem, and this only hints at it.