Your anecdotal experience doesn't take into account weather the patients were divorced following the injury or if they were unmarried before the injury to begin with.

The study was looking into something totaly different.

The study is also looking at a complex thing like interpersonal relationships. Some people who are sick or have issues blame the people helping them. My wife gets upset I do not care enough about her issues when I am working on work, and our finances, and all our other stuff that have to be in line so that she can get the best care we can. She likes to bring up divorce even though she would be utterly fucked in that scenario. If she were married to another type of man she would be one of these statistics. Im not saying that is the only reason as I have seen sickly men act like this to.

That's an interesting observation, it'd be interesting to see what could be the reason why that pattern might hold in a proper survey. But it could just be chance that it was that way at that particular facility.