The survey population for this study was American Mensa members. I'm not surprised they found "those in the Mensa community had considerably higher rates of varying disorders" but I suspect this has more to do with who joins Mensa rather than high IQ.

As noted by Scott Adams, "It turns out that the people who join Mensa and attend meetings are, on average, not successful titans of industry. They are instead – and I say this with great affection – huge losers. I was making $735 per month and I was like frickin’ Goldfinger in this crowd. We had a guy who was some sort of poet who hoped to one day start “writing some of them down.” We had people who were literally too smart to hold a job. The rest of the group dressed too much like street people to ever get past security for a job interview. And everyone was always available for meetings on weekend nights."