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Predicted mean IBS-SSS by assessment time point and trial arm
Data are mean (95% CI). Predictions are made from respective analysis models fitted by multiple imputation with baseline set to the sample average value (IBS-SSS=265) and for the site from which most participants were recruited (general practitioners in Southampton). The possible range for IBS-SSS is 0–500. CBT=cognitive behavioural therapy. IBS-SSS=Irritable Bowel Syndrome Symptom Severity Score. TAU=treatment as usual.
