Demographic characteristics of healthy volunteers and patients with IBS
| Healthy volunteers | PI-IBS | IBS-C | |
| Age | 41.6 (12.2) | 40 (15.1) | 45.4 (12.3) |
| Female/male | 23/2 | 14/6 | 19/0 |
| HADS anxiety score (mean, SD) | 2.7 (2.2) | 5.2 (3.8) | 3.4 (2.2)* |
| HADS depression score (mean, SD) | 0.4 (0.6) | 2.3 (2.8) | 1.1 (1.7)* |
| IBS symptom severity score (mean, SD) | – | 254.5 (94) | 206.7 (78.7) |
| IBS quality of life score (mean, SD) | – | 30.5 (19.9) | 32.3 (11.4) |
↵*P<0.05 for healthy versus PI-IBS. Non-parametric one-way analysis of variance (Kruskal-Wallis) with Dunn’s post hoc analysis.
HADS, hospital anxiety and depression scale; PI-IBS, postinfection IBS.