It has long been known that social and family pathologies are most acute where religiosity is strongest; Jerry Coyne rounds-up a nice collection of the graphics.
Typical:
Coyne has compiled, published and presented a lot of data over the years which appear to point toward the conclusion that social stresses precede intense religiosity, that religion grows best where there is a sick, stressed, decadent culture. He’s got the data, so I don’t want to pick a fight with him, but I don’t think that’s the entire story. Once rooted, religious communities conspire against the progress that would relieve those stresses; Christianity needs sickness to flourish.