Having worked in mental health for nearly 30 years, currently with an organisation that bans service users from using ecigs on their property (including outside), this is a subject very close to my heart!
The last article I found on the subject of smoking rates within mh was that a whopping 96% of people with schizophrenia smoke.
People generally do self-medicate, often in very self-destructive ways (i.e. tobacco, illicit drugs, alcohol & excessive caffeine consumption), and I've seen many very early deaths directly attributed to this type of lifestyle.
Of course more people who use ecigs will experience a range of mh issues than amongst the general population, because a disproportionately high number of people in this group are/have been smokers.
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