Patient demographics at baseline
| Cases | Controls | P value | |
| Subjects | 22 | 77 | – |
| Age, median (IQR) | 57 (41–64) | 62 (48–71) | 0.05 |
| Female, n (%) | 18 (82) | 33 (65) | 0.002 |
| PHQ-12 SS, median (IQR) | 5 (3–6) | 2 (1–4) | 0.002 |
| HADS-A, median (IQR) | 5 (4–10) | 5 (3–7) | 0.22 |
| HADS-D, median (IQR) | 4 (1–6) | 3 (1–5) | 0.67 |
| Weekly stool frequency preinfection, median (IQR) | 7 (7–7) | 7 (7–14) | 0.31 |
| Weekly stool frequency postinfection, median (IQR) | 9 (6–14) | 7 (7–14) | 0.55 |
| Recurrent pain in last 14 days | 57% | 21% | <0.001 |
| Pain associated with loose stools | 71% | 48% | <0.001 |
| Reported bloating | 57% | 17% | <0.001 |
| Reported urgency | 52% | 30% | 0.08 |
| Stools often loose or watery | 59% | 13% | <0.001 |
HADS-A, Hospital Anxiety and Depression Scale-Anxiety subscale; HADS-D, HADS–Depression subscale; PHQ-12 SS, Patient Health Questionaire-12 Somatic Symptom Scale.