Researchers now report that nearly 50% of teens who were successfully treated for depression for 12 weeks--using Prozac alone, cognitive-behavior therapy alone or a combination of both--relapsed within five years. Girls were more likely than boys to become depressed again, the study showed.

But the most surprising finding was that the type of treatment did not affect the recurrenc rate, even though the scientists had expected the combination therapy to be more effective in preventing future depressive episodes.

Source: Time
http://www.time.com/time/magazine/article/0,9171,2029475,00.html