Association of anxiety-depressive disorders with IBS subtypes (n=175)
| Variables | IBS subtypes | χ2 | P value | |||||
| IBS-C (n=70) | IBS-D (n=47) | IBS-M (n=58) | ||||||
| n | % | n | % | n | % | |||
| Anxiety | ||||||||
| Mild | 26 | 37.1 | 12 | 25.5 | 27 | 46.6 | 9.389 | 0.052 |
| Moderate | 27 | 38.6 | 22 | 46.8 | 26 | 44.8 | ||
| Severe | 17 | 24.3 | 13 | 27.7 | 5 | 8.6 | ||
| Depression | ||||||||
| Mild | 44 | 62.9 | 24 | 51.1 | 37 | 63.8 | 4.060 | 0.398 |
| Moderate | 12 | 17.1 | 7 | 14.9 | 6 | 10.3 | ||
| Severe | 14 | 20.0 | 16 | 34.0 | 15 | 25.9 | ||
IBS, irritable bowel syndrome; IBS-C, IBS constipation; IBS-D, IBS diarrhoea; IBS-M, mixed IBS.