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Mar30-08, 05:58 PM
Is it a placebo effect?
That would be a pretty impressive placebo! The age dependence is interesting though.
This group was divided into classical cases, atypical cases and cases exhibiting significant psychopathology. The response rates were 95%, 43%, and 60% respectively. Patients over the age of 50 years responded very poorly (25%) whereas those below the age of 50 with classical irritable bowel syndrome exhibited a 100% response rate