This is an interesting topic, and has some potential for helping predict the types of injuries so that we can focus on ways to avoid them. So the tracking is good. If anyone sets up a tracking system be sure the categories are broad enough to get adequate data, but specific enough to narrow down types (e.g. sprains, crushing injuries, etc.).
One thing to be sure to do is to specify is that we are referring to injuries DURING the sport (e.g. CrossFit v. soccer v. treadmill), etc, not injuries in general.
This is important as I would suspect that an active CrossFitter doing it appropriately would be less likely to be injured doing OTHER sports/activities due to CrossFit's emphasis on GPP.
For the study abroad program we run here in Thailand (see www.isdsi.org
WFS), we don't have enough data to back it up (yet), but students and instructors who are doing CrossFit seem to be less likely to injure themselves on our expeditions and field courses. We are backpacking in Northern Thailand, sea kayaking in the islands, etc., and it is pretty demanding. Part of our motivation to starting CrossFit Chiang Mai was to help get our students in better shape, as well as prevent injuries for students and staff. We think it is making a difference in injuries, and KNOW it is making a difference in how students (and instructors) perform.
And we need it. Over the last 12 years we've seen the general level of fitness of our American students decline, so now everyone has mandatory CrossFit for the first 6 weeks of the semester. And it helps a lot.