Table 1.
Demographics, IBS, Pain, and Psychological Symptoms of Healthy Control (HC) and Women with Irritable Bowel Syndrome (IBS) Groups
| HC (n = 20) | IBS (n = 20) | P-valuea | |
|---|---|---|---|
| Demographic characteristics | |||
| Age, M (SD) | 27.6 (5.5) | 27.4 (6.6) | .940 |
| White race, % | 75% | 75% | 1.00 |
| College Degree, % | 90% | 65% | .127 |
| Duration of IBS, n (%) | |||
| < 5 years | 4 (20%) | ||
| 5 – 9 years | 7 (35%) | ||
| ≥10 years | 9 (45%) | ||
| Recalled symptoms, M (SD)b | |||
| GI symptoms | |||
| Abdominal pain severity over 3 mo. | 2.8 (0.5) | ||
| Pain Impact | 2.9 (1.0) | ||
| Pain Behaviors | 2.3 (0.9) | ||
| Psychological symptoms | |||
| BSI - Global Severity Index | 0.10 (0.10) | 0.32 (0.26) | .001 |
| Anxiety | 0.12 (0.13) | 0.37 (0.39) | .007 |
| Depression | 0.10 (0.17) | 0.38 (0.54) | .032 |
| Daily symptoms, M (SD)c | |||
| GI symptoms | |||
| Abdominal pain or discomfort | 4.0 (9.8) | 28.0 (22.4) | <.001 |
| Lower GI symptoms | 1.1 (2.6) | 22.8 (16.0) | <.001 |
| Upper GI symptoms | 0.6 (2.1) | 7.2 (11.2) | .014 |
| Somatic pain symptoms | 1.1 (3.1) | 3.7 (3.6) | .017 |
| Psychological symptoms and fatigue, M(SD) | |||
| Anxiety | 1.2 (2.9) | 17.1 (20.2) | .001 |
| Depressed | 0.4 (1.9) | 7.5 (13.8) | .029 |
| Stressed | 6.5 (17.2) | 19.3 (20.2) | .037 |
| Fatigue | 5.9 (13.4) | 19.7 (17.7) | .009 |
Note. HC = Healthy Controls; IBS = Irritable Bowel Syndrome; BSI = Brief Symptom Inventory; GI = Gastrointestinal. Of the recalled symptoms abdominal pain severity was recalled over 3 months; Pain Impact and Pain Behaviors are measures from the Patient-Reported Outcomes Measurement Information System (PROMIS - short forms) and were recalled over 7 days. Psychological distress symptoms recalled over 7 days. Daily symptoms were recorded each evening, and are summarized for each person as the percent of days with moderate to very severe symptom severity.
a
t-test.