CTS and Computer Use: Not as Bad As Previously Thought?

It seems that computer use doesn't pose as much risk as previously thought. In a recent study by The Journal of the American Medical Association, they concluded that "computer use does not pose a severe occupational hazard for developing symptoms of CTS." (JAMA, 2003;289:2963-2969).

However, it is important to note that in the same abstract that while there was no statistically significant association between keyboard use and Carpal Tunnel Sydrome (CTS), a positive correlation was made between mouse usage exceeding 20 hrs/wk and the development of CTS.

So what do you think? Is CTS risk overblown in computer-driven workplaces, or are there aspects of the issue that aren't being adequately addressed?