Table 2.
SCL-90-R and TICS T-scores, means, standard deviations, and group comparisons of the IBS group and the non-IBS reference group.
| IBS group (n = 176) | Non-IBS group (n = 181) | MANOVA | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| T | M | ± | T | M | ± | F | df | P | η 2 | |
| SCL-90-R | ||||||||||
| Somatization | 58.22 | 0.77 | 0.55 | 52.44 | 0.46 | 0.38 | 39.17 | 1, 355 | <.001 | .099 |
| Obsessive-compulsive | 53.75 | 1.02 | 0.71 | 49.61 | 0.75 | 0.60 | 14.20 | 1, 355 | <.001 | .038 |
| Interpersonal sensitivity | 53.01 | 0.99 | 0.78 | 48.66 | 0.68 | 0.58 | 17.36 | 1, 355 | <.001 | .047 |
| Depression | 56.71 | 1.15 | 0.80 | 52.27 | 0.81 | 0.63 | 19.07 | 1, 355 | <.001 | .051 |
| Anxiety | 55.96 | 0.84 | 0.77 | 50.58 | 0.51 | 0.56 | 20.93 | 1, 355 | <.001 | .056 |
| Hostility | 52.50 | 0.67 | 0.70 | 50.01 | 0.52 | 0.61 | 4.23 | 1, 355 | <.05 | .012 |
| Phobic anxiety | 54.16 | 0.35 | 0.52 | 50.38 | 0.20 | 0.35 | 10.95 | 1, 355 | <.001 | .030 |
| Paranoid ideation | 49.80 | 0.68 | 0.69 | 46.76 | 0.48 | 0.50 | 9.90 | 1, 355 | <.001 | .027 |
| Psychoticism | 54.74 | 0.51 | 0.51 | 51.33 | 0.34 | 0.38 | 12.66 | 1, 355 | <.001 | .034 |
| Global severity index (GSI) | 56.17 | 0.82 | 0.56 | 50.58 | 0.55 | 0.41 | 25.54 | 1, 355 | <.001 | .067 |
| TICS | ||||||||||
| Work overload | 60.59 | 19.23 | 6.51 | 56.01 | 16.53 | 6.79 | 14.66 | 1, 355 | <.001 | .040 |
| Social overload | 51.80 | 9.12 | 4.92 | 50.72 | 8.43 | 4.49 | 1.94 | 1, 355 | .165 | — |
| Pressure to succeed | 53.37 | 20.14 | 5.60 | 50.86 | 18.19 | 5.17 | 11.67 | 1, 355 | <.01 | .032 |
| Dissatisfaction with job | 57.14 | 13.99 | 5.20 | 55.25 | 12.73 | 5.57 | 4.87 | 1, 355 | <.05 | .014 |
| Excessive work demands | 62.44 | 10.67 | 4.81 | 58.55 | 8.61 | 4.47 | 17.51 | 1, 355 | <.001 | .047 |
| Lack of social recognition | 57.88 | 7.09 | 3.31 | 54.17 | 5.69 | 2.89 | 17.97 | 1, 355 | <.001 | .048 |
| Social tension | 53.20 | 7.48 | 4.80 | 51.25 | 6.49 | 4.17 | 4.29 | 1, 355 | <.05 | .012 |
| Social isolation | 60.09 | 12.34 | 4.10 | 57.75 | 10.56 | 4.27 | 15.96 | 1, 355 | <.001 | .043 |
| Chronic worries | 60.06 | 10.23 | 3.84 | 53.82 | 7.73 | 3.86 | 37.52 | 1, 355 | <.001 | .096 |
| Chronic stress (SSCS) | 61.06 | 25.66 | 8.76 | 55.79 | 20.29 | 8.56 | 34.34 | 1, 355 | <.001 | .088 |
IBS: irritable bowel syndrome, SCL-90-R: symptom checklist 90 revised, TICS: Trier inventory for the assessment of chronic stress, GSI: global severity index, SSCS: screening scale for chronic stress, MANOVA: multivariate analysis of variance.