. Author manuscript; available in PMC: 2019 Sep 11.

Published in final edited form as: Am J Gastroenterol. 2019 Feb;114(2):330–338. doi: 10.1038/s41395-018-0396-x

Table 4.

Mean change from baseline for the IBS-SSS

	Immediate	3 Months	6 Months	9 Months	12 Months
MC-CBT	−89.2 ±17.0	−106.3 ± 17.7	−113.1 ± 17.9	−111.2 ± 17.7	−120.1 ± 17.9
S-CBT	−80.8 ±17.0	−103.60 ± 16.5	−105.4 ± 17.5	−104.6 ± 17.0	−112.9 ± 18.4
EDU	−84.3 ±14.7	−88.9 ± 14.6	−99.8 ± 15.2	−94.4 ±17.1	−103.4 ± 18.6

None of the contrasts within a column, i.e., at a given time point, were statistically significant; all changes at a given time and in a given condition are statistically significantly more negative than −50. For example, at FU12 in the MC-CBTcondition, the average change from baseline was −120.1, which is statistically significantly greater than −50; sample sizes for the three groups are MC-CBT = 125, S-CBT = 117 and EDU = 127.

EDU, education condition; FU, follow-up; IBS-SSS, Irritable Bowel Syndrome Symptom Severity Scale; MC-CBT, minimal contact-cognitive behavior therapy; S-CBT, standard-cognitive behavior therapy.