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Table 4 Changes in Physical Component Scores (PCS) and Mental Component Scores (MCS) from preoperatively to two year 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

Group (number of participants)nΔ PCS95% CIp-valueΔ MCS95% CIp-value
All participants1537.15.4 to 8.8<0.001−1,25−2.9 to 0.440.15
Subgroups based on IBS at preoperative visit:
 With IBS100.54−8.6 to 9.70.90−2.6−8.5 to 3.20.33
 Without IBS1437.65.8 to 9.3<0.001−1.2−2.9 to 0.620.20
Subgroups based on IBS-like symptoms 2 years after RYGB:
 Never IBS or IBS-like symptoms1137.685.8 to 9.6<0.0010.29−1.5 to 2.10.75
 New onset IBS-like symptoms307.152.8 to 11.50.002−6.59−11.3 to − 1.90.007
 IBS at preoperative and IBS-like symptoms 2 year follow-up visit6−3.3−14.1 to 7.50.47−4.9−14.8 to 5.00.26
  1. All participants, and subgroups based on status of irritable bowel syndrome (IBS) are presented. Significant p-values are marked in bold
  2. The SF-36 questionnaires were scored using the QualityMetric Health Outcomes™ Scoring Software 4.5 giving the presented Physical Component Scores (PCS) and Mental Component Scores (MCS)
  3. The presented delta values: SF-36 value at the 2 year follow-up visit - SF-36 value at the preoperative visit. Positive delta values indicate improved score after RYGB and negative values indicate worsened score after RYGB. The results are given as mean values with 95% confidence intervals (CI). Data were analyzed with paired t-tests
  4. New onset IBS-like symptoms: no IBS before RYGB, but IBS-like symptoms 2 years after RYGB. Never IBS or IBS-like symptoms: No IBS before or IBS-like symptoms 2 years after RYGB
  5. Missing data: All participants; n = 80. Subgroups based on IBS at preoperative visit: with IBS; n = 17, without IBS; n = 63. Subgroups based on IBS-like symptoms 2 years after RYGB: never IBS or IBS-like symptoms; n = 48, new onset IBS-like symptoms; n = 15, IBS at preoperative and IBS-like symptoms 2 year follow-up visit; n = 10