| IBS | Total | OR | CI 95% | p | ||||
| Yes | No | |||||||
| Sex | 0.001 | |||||||
| Female | 24 | 175 | 199 | 3.72 | [1.63; 8.48] | |||
| Male | 8 | 217 | 225 | 1 | ||||
| BMI | 0.023 | |||||||
| Normal | ||||||||
| Overweight | 8 | 46 | 54 | 0.38 | [0.16; 0.90] | |||
| Obesity | 2 | 12 | 14 | 0.40 | [0.08; 1.88] | |||
| Depression | 0.002 | |||||||
| Absent | 17 | 317 | 334 | 1 | ||||
| Doubtful | 11 | 58 | 69 | 3.54 | [1.58; 7.94] | |||
| Definite | 4 | 17 | 21 | 4.39 | [1.33; 14.47] | |||
| Anxiety | 0.005 | |||||||
| Absent | 12 | 232 | 244 | 1 | ||||
| Doubtful | 10 | 106 | 116 | 1.82 | [0.76; 4.25] | |||
| Definite | 10 | 54 | 64 | 3.58 | [1.47; 8.72] | |||
| Sleep disorders | <0.001 | |||||||
| Yes | 17 | 87 | 104 | 3.97 | [1.91; 8.28] | |||
| No | 15 | 305 | 320 | 1 | ||||
| Smoking | 0.011 | |||||||
| Yes | 5 | 19 | 24 | 3.64 | [1.26; 10.49] | |||
| No | 27 | 373 | 400 | 1 | ||||