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Table 3 Changes in constipation and diarrhea symptom scores from preoperatively to 2 years after Roux-en-Y Gastric bypass (RYGB)

From: Irritable bowel syndrome-like symptoms and health related quality of life two years after Roux-en-Y gastric bypass - a prospective cohort study

GroupnΔ constipation symptom score95% CIp-valuenΔ diarrhea symptom score95% CIp-value
All participants174−0.29−0.44 to −0.14<0.001177−0.40−0.58 to −0.22<0.001
Subgroups based on IBS status preoperatively:
 With IBS21−0.19−0.66 to 0.280.4121−0.38−1.1 to 0.340.28
 Without IBS153−0.31−0.46 to −0.15<0.001156−0.40−0.58 to −0.22<0.001
Subgroups based on IBS like symptoms 2 years after RYGB:
 Never IBS or IBS-like symptoms116−0.16−0.32 to 0.0120.068119−0.31−0.50 to − 0.110.002
 New onset IBS-like symptoms37−0.77−1.13 to − 0.42<0.00137− 0.71− 1.15 to − 0.270.002
 IBS preoperatively and IBS-like symptoms at 2 year follow-up visit14− 0.24− 0.75 to 0.280.3414− 0.24− 1.3 to 0.780.62
  1. All participants, and subgroups based on status of irritable bowel syndrome (IBS) are presented. Significant p-values are marked in bold
  2. The presented delta values: Gastrointestinal Symptom Rating Scale (GSRS) at the 2 year follow-up visit - GSRS at the preoperative visit. Positive delta values indicate improved symptoms after RYGB, negative delta values indicate worsened symptoms after RYGB. The results are given as mean values with 95% confidence intervals (CI). Data were analyzed with paired t-tests
  3. New onset IBS: no IBS preoperatively, but IBS-like symptoms 2 years after RYGB. Never IBS: No IBS preoperatively or IBS-like symptoms 2 years after RYGB
  4. Missing data Δ constipation symptom score: All participants; n = 59. Subgroups based on IBS status preoperatively: with IBS; n = 6, without IBS; n = 53. Subgroups based on IBS-like symptoms 2 years after RYGB: never IBS or IBS-like symptoms; n = 45, new onset IBS-like symptoms; n = 8, IBS at preoperative and IBS-like symptoms 2 year follow-up visit; n = 2
  5. Missing data Δ diarrhea symptom score: All participants; n = 56. Subgroups based on IBS status preoperatively: with IBS; n = 6, without IBS; n = 50, never IBS; n = 42. Subgroups based on IBS-like symptoms 2 years after RYGB: new onset IBS-like symptoms; n = 8, IBS at preoperative and IBS-like symptoms 2 year follow-up visit; n = 2