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Table 2 Comparison of each variable between IBS patient, non-patient IBS, and control groups after adjusting for age

From: Validity and reliability of the Japanese versions of cognitive and behavioral scales for irritable bowel syndrome

  Mean (SD)  
IBS patient (n = 24) Non-patient IBS (n = 74) Control (n = 116) F p ηp2
CS-FBD (25 items) 103.5 (30.2) 78.6 (25.1) 57.1 (21.9) 29.01 < 0.001 0.216
CS-FBD (23 items) 93.7 (29.2) 69.8 (24.6) 49.4 (20.7) 28.40 < 0.001 0.213
IBS-BRQ (26 items) 84.7 (32.4) 62.4 (22.8) 46.7 (19.8) 21.91 <0.001 0.173
IBS-BRQ (18 items) 60.2 (24.0) 42.2 (17.0) 30.0 (14.2) 24.50 <0.001 0.189
IBS-SI 193.3 (109.7) 193.9 (80.7) 116.1 (86.6) 18.96 < 0.001 0.153
Disruption to daily life (IBS-SI) 56.9 (30.4) 43.4 (25.3) 25.4 (27.0) 11.58 < 0.001 0.101
VSI 52.4 (14.7) 23.2 (19.8) 13.6 (17.0) 22.69 < 0.001 0.197
DAS 92.1 (24.4) 93.1 (24.5) 87.3 (20.7) 3.50 0.032 0.033
HADS (Anxiety) 7.4 (4.8) 7.3 (3.6) 6.4 (3.8) 2.73 0.067 0.026
HADS (Depression) 5.3 (4.8) 4.8 (3.0) 4.9 (3.8) 0.21 0.811 0.002
HADS (Total) 12.7 (9.1) 12.1 (6.0) 11.3 (7.0) 1.08 0.342 0.010
SASS 29.9 (7.8) 35.9 (6.4) 37.4 (6.5) 6.24 0.002 0.058
  1. IBS irritable bowel syndrome
  2. CS-FBD-J Japanese version of Cognitive Scale for Functional Bowel Disorders
  3. IBS-BRQ Irritable Bowel Syndrome-Behavioral Responses Questionnaire
  4. IBS-SI IBS Severity Index
  5. VSI Visceral Sensitivity Index
  6. DAS-24 24-item Dysfunctional Attitudes Scale
  7. HADS Hospital Anxiety and Depression Scale
  8. SASS Social Adaptation Self-evaluation Scale