It's a violence against women problem the NFL is addressing. No one gives a poo about a woman hitting a man. When taking any statistic into account, you have to find the study, how data was collected, and how it was interpreted. One thing I've learned is to not pay attention to any statistic put forth by an interest group or most kinda of media, particularly main stream groups such as national newspapers or Internet outlets.
I have a difficult time believing any form of statistic.
This is mostly because my company (small business) takes on a state contract every year to do a statistical analysis of public feedback on their department. They are not allowed to do their own analysis (for obvious reasons) and are required by law analysis be done by an independent and private organization with no other ties to the department. Thing is, we don't get a dime until they get what they want. When they send us the data, they add arbitrary weights to each form of result (so marking the department a 0 for communication isn't weighted as a 0). We send them the analysis, then they send it back along with the data and change the weights. This happens 3-4 times before we get paid.