Posted by linkadge on December 30, 2006, at 10:02:57
In reply to Re: After the hype » laima, posted by madeline on December 30, 2006, at 6:34:45
More than half of all clinical trials fail to show that antidperessants perform better than placebo.
So, if you really want accurate numbers for clinical trials, you do it this way.
More than half fail to show, that means that less than half actually show, say 42%. Then we multiply that by the average number of people helped *within* a successfull clinical trial, say 55%.
Ie clinical trials, overall, say that 0.42 x 55% = 23% of people are helped by antidepressants.
But they don't do that. They simply state the percentage of people who are helped within sucessfull clinical trials.
Linkadge
poster:linkadge
thread:717262
URL: http://www.dr-bob.org/babble/20061224/msgs/717541.html