Actually I find this study to be quite compelling evidence in favor of MBCT. We know that individuals withdrawn off of maintenance antidepressants relapse at an alarmingly high rate when compared to individuals maintained on antidepressants (e.g., Hollon et al., 2005). Over the shorter term (1-2 years) maintenance meds are pretty good at preventing relapse, even though there may be other iatrogenic effects accumulating. So MBCT was at minimum able to overcome the known relapse rate associated with stopping the meds. That’s no small feat. The study also lasted only two years. We know that the relapse prevention effects of CBT and MBCT actually increase in comparison to medication maintenance over the longer term (e.g., Bockting et al., 2009). I suspect when longer-term follow-ups are conducted, these authors will observe the same effects.