Game Developer Magazine has recently released some statistics on wage data within the video games industry, and there's a large gap between both the numbers of men and women working and the pay made based on gender. There are some issues with the way the data is presented, but I think it makes an interesting read:
http://borderhouseblog.com/?p=10567
What I would like to know is how are both genders represented across the years of experience. For instance, audio development has a massive disparity between men and women, but it also has a large gap between the average pay in each category of experience. So if there are only a few women in the lower two experience brackets and entirely men in the highest experience bracket, this may have caused the massive issue between the two we see. So a breakdown by gender of the three experience categories would be exceedingly beneficial.
It would also help by revealing if certain fields have begun accepting more women in recent years(which should skew pay data lower for them), used to accept more women(which should skew it higher), or have a smattering of women working in the field across experience levels. And there is also no gender breakdown for the "additional income" category to see whether women are receiving less pay but earning more benefits in their respective age categories.
So...yes, lots of elements to question about the data. But it still shows how starkly some of these areas are dominated by men, almost entirely so in areas such as programming and audio.