So I don't particularly doubt this studies results, but looking at the first chart it seems to be saying that the top quintile is more likely to be schizophreni

So I don't particularly doubt this studies results, but looking at the first chart it seems to be saying that the top quintile is more likely to be schizophrenic than develop a substance abuse issue. That's a very surprising result to me, and I wonder if something like the private practice omission might explain that one small portion of the data.