http://youtu.be/bBMlCdWQQS8#t=4800
http://www.psyli.fi/media/tapahtumia
http://www.psyli.fi/files/2100/Kirsch_Antidepressants_slideshow.pdf
- FDA - 40%
- EU - 70%
- UK - 100%
More articles here if you're interested:
http://www.cchrint.org/tag/irving-kirsch/
Ain't this stuff lots of fun?
http://www.psychiatrist.com/jcp/article/Pages/2015/v76n03/v76n0313.aspx wrote:Understanding NNT: Breaking Up the Numbers
In the pediatric depression meta-analysis, the response rate to antidepressants versus placebo was 60% vs 49%, respectively. So, if 100 depressed children and adolescents are treated with an antidepressant drug, 49% would respond because of placebo-related mechanisms, an additional 11% would respond because of the unique contribution of the antidepressant treatment (making the total response rate 60%), and the remaining 40% would not improve.
With regard to the NNT = 9 estimate, if 9 depressed pediatric subjects are treated with an antidepressant drug, 49% of these (4½ patients) would anyway have responded because of placebo mechanisms, 11% (1 patient) would respond because of the additional benefit associated with antidepressant treatment, and 40% (3½ patients) would not respond. The NNT, of course, does not tell us all this; it merely tells us that we need to treat 9 patients with an antidepressant for 1 additional patient to respond. Readers may pardon the reference to “half patients”; mathematics does not always work in whole numbers!