Thanks for all that information. I'm going to mark this thread as a favorite.

I have to wonder if there might be some other variable at work, such as who chooses SJW vs. prescription meds or no meds (not that research subjects generally are given a choice since they are blind studies, but that would be something else to consider too in future studies). I'd like to speculate that people who choose SJW and are motivated to take charge of and participate in their own recovery would have better long-term outcomes than, say, someone who only goes to their family doctor for a prescription to manage symptoms. But there would be so much more involved too. Very severe depression might remove SJW as an option. And of course there are people who take charge of their own treatment and choose prescription meds. Nothing is ever simple, is it?