Cancer rates began a dramatic rise in the 60s - 70s not because there was so much more cancer as proposed by the emerging environmental whack-jobs with their mushy idiot degrees, but because of the diagnostic tools to detect, quantify and classify it. In this case, you have religious aspects that play a role (Protestants for example have a higher suicide rate than Catholics, but Catholics have a higher divorce rate)......... Utah is Mormon, parts of the South, Southern Baptist etc etc etc. I doubt they can really isolate the variables here. But that's just a hunch.
I agree...'cause whatever they are...they're multiple. Just like individual people committing self-homicide for different reasons...with oft' the case no doubt multiple reasons per person.