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Table 2 Regression models predicting GSRS-IBS scores at post-treatment and follow-up

From: Prediction of symptomatic improvement after exposure-based treatment for irritable bowel syndrome

  Coeff     CI-      CI+      β      t      p Partial r
Prediction of GSRS-IBS at post-treatment. R = .536. R 2= .287. p < .001
Intercept 10.66 −18.52 39.84   0.73 .469  
GSRS-IBS pre-treatment 0.51 0.19 0.83 .40 3.18 .002 .36
CSQ-CAT −0.03 −0.58 0.51 -.02 −0.10 .921 -.01
ASI −0.01 −0.29 0.27 -.01 −0.08 .939 -.01
IBS-QOL −0.05 −31.64 21.48 -.08 −0.38 .704 -.05
SDS 0.27 −0.23 0.75 .16 1.08 .284 .13
Prediction of GSRS-IBS at follow-up. R = .441. R 2= .195. p = .039
Intercept 12.75 −25.75 51.26   0.66 .511  
GSRS-IBS pre-treatment 0.21 −0.12 0.54 .18 1.25 .215 .15
Major depressive disorder 5.31 −2.32 12.94 .17 1.39 .169 .17
MADRS-S 0.32 −0.15 0.78 .20 1.37 .177 .17
VSI 0.08 −0.22 0.38 .11 0.53 .597 .07
CSQ-CAT −0.01 −0.59 0.58 .00 −0.02 .985 .00
IBS-QOL 0.03 −30.83 36.68 .05 0.17 .863 .02
SDS 0.04 −0.46 0.54 .03 0.17 .866 .02
  1. CI-: 95% Confidence interval, lower bound. CI + 95% Confidence Interval, upper bound. GSRS-IBS Gastrointestinal Symptom Rating Scale, IBS version, MADRS-S Montgomery Åsberg Depression Rating Scale - Self Report, VSI Visceral Sensitivity Index, ASI Anxiety Sensitivity Index, CSQ-CAT Coping Strategies Questionnaire – Catastrophizing subscale, IBS-QOL Irritable Bowel Syndrome Quality of Life Instrument, SDS Sheehan Disability Scales.