It is more prevalent. People in tech also work long hours, have "side projects" aka somewhat expected unpaid work, are unhealthy, seem to not exercise, play video games too much, watch too much tv...
Is it more prevalent because we have hard data showing it is, or do we think it is more prevalent because we typically speak with more people in tech because we're in tech and have more experience with them?
I am now a few years post-divorce and in a relationship with a wonderful future wife v2.0, and I will be the first to tell you that my perspective on others', careers, and behavior patterns has changed significantly because I'm exposed to a very different slice of American culture than I was with wife v1.0. You'll find similarities where you didn't expect to find them. The same is true of differences.
Still lower than a lot of other professions. I do wonder how the difference in work-culture affects the data though. I have talked to programmers in the UK who say that the environment is completely different -- 35-40 hour weeks rather than the churn and burn that you see at a lot of businesses here.
Mabey this is more an American problem? I live in Sweden and developer jobs here are fairly low pressure, high pay and everything else the rest of the industry has: 1 year maternity leave, 6 week paid vacation etc. I would definitely recommend it to anyone!
the list goes on