Sigh. A group of teens treated for major depression had a 50% chance of becoming depressed again, no matter the method by which they were treated. And the teen girls were more likely to have a future episode of depression.
My thought upon reading this is didn't we sort of know this already? Sometimes people have depression as a reaction to circumstances, get better and never have depression again. For some people it's more of a chronic issue with relapses. And I don't think it's rocket science that different treatments will work for different people at different times.
The depressing part is that researchers are thinking of treatment as a silver bullet, that you can just get treated once and have yourself fixed. IT DOESN'T WORK THAT WAY.