answer:I believe the study does make sense and yes, I’ve heard of such cases, though obviously the reasons are not physical as they are for women, and, just like women, are affected by other factors. I suspect it’s usually more of a knock-on effect because of what’s happening with the wife (and all that means to the relationship) rather than a direct result of the birth. Also, what I noticed when my own daughter was born, was a jealousy between the child and the mother (since I was the main carer for various practical reasons), which led to the depression (among other things) of the mother in our case. I guess that it would be the other way around in most cases where the mother is the primary carer and the father feels “left out”, especially since most men don’t know what to do and how to cope with this new situation. So yeah, 10% sounds about right. The other 90% just go and get drunk.