Table 2a.
Mean Differences Among Negative Interaction (NI) Quartile Groups
| Negative Interaction Group | ||||
|---|---|---|---|---|
| 1st Quartile (n = 50) | 2nd Quartile (n = 65) | 3rd Quartile (n = 66) | 4th Quartile (n = 51) | |
| IBS-SSS | 276.50 (95.6)1 | 271.88 (67.5)1 | 288.12 (68.3)1,2 | 306.77 (75.4)2 |
| IBS-QOL | 59.44 (18.8)1 | 61.58 (16.2)1 | 56.68 (18.0)1 | 46.96 (20.4)2 |
| PSS | 5.16 (2.8)1 | 5.82 (2.7)1 | 7.29 (2.9)2 | 9.45 (3.3)3 |
| Ab Pain | 4.58 (2.2)1 | 4.59 (2.0)1 | 5.28 (1.7)1,2 | 5.46 (2.1)2 |
| BSI-Depression | 3.04 (4.1)1,2 | 2.86 (3.1)1 | 4.47 (3.8)1,2 | 8.16 (5.3)3 |
| Somatization | 11.10 (5.6)1,2 | 10.21 (5.2)1 | 12.44 (6.9)1,2 | 14.84 (7.3)3 |
| Trait Anxiety | 18.37 (6.1)1 | 18.39 (4.8)1 | 20.29 (4.7)1 | 25.78 (6.8)2 |
| Med Comorb | 5.71 (4.9)1 | 6.97 (5.3)1,2 | 8.82 (6.8)2,3 | 9.62 (7.0)3 |
| Social Support | 41.24 (5.5)1 | 40.32 (5.7)1 | 39.86 (5.7)1 | 36.29 (6.6)2 |
Note. Within rows, means with similar superscripts are statistically similar to one another and means with different superscripts are statistically different from one another at p < .05. IBS-SSS- Irritable Bowel Syndrome Symptom Severity Scale, IBS-QOL-Irritable Bowel Syndrome Quality of Life, PSS- Perceived Stress Scale, BSI-Depression-Brief Symptom inventory Depression Scale, SOMS-7- Screening for Somatoform Symptoms, STAI-Trait-State Trait Anxiety Inventory-Trait Scale, Comorbid-Medical Comorbidites.