Table 2. Clinical Characteristics.
| Total IBS (n=247) | IBS-C (n=69) | IBS-D (n=65) | IBS-M (n=109) | p-value | |
|---|---|---|---|---|---|
| Abdominal Pain Severity | |||||
| 0-20pt scale, mean (S.D.) | 9.82 (4.65) | 9.69 (4.96) | 9.65 (4.95) | 9.94 (4.28) | 0.961 |
| Mild to moderate, N (%) | 169 (68.4%) | 44 (63.8%) | 46 (70.8%) | 75 (68.8%) | 0.815 |
| Bloating Pain Severity | |||||
| 0-20pt scale, mean (S.D.) | 11.45 (5.17) | 12.09 (5.35) | 11.14 (5.35) | 11.24 (4.98) | 0.627 |
| Presence of dyspepsia, N (%) | 123 (49.8%) | 32 (46.4%) | 37 (56.9%) | 51 (46.8%) | 0.384 |
| Presence of heartburn, N (%) | 60 (24.3%) | 14 (20.3%) | 16 (24.6%) | 30 (27.5%) | 0.528 |
| Psychological symptoms, mean (S.D.) | |||||
| CSQ (0-6) | 1.44 (1.24) | 1.54 (1.48) | 1.25 (0.99) | 1.53 (1.21) | 0.459 |
| HAD Anxiety (0-21) | 7.48 (4.35) | 6.65 (4.33) | 7.55 (4.21) | 8.06 (4.44) | 0.113 |
| HAD Depression (0-21) | 3.82 (3.58) | 4.10 (4.14) | 3.42 (3.15) | 3.96 (3.46) | 0.617 |
| PHQ-12 (0-24) | 6.49 (4.18) | 6.65 (4.86) | 6.13 (3.63) | 6.68 (4.06) | 0.753 |
| VSI (0-75) | 36.39 (16.25) | 34.93 (15.46) | 35.29 (16.93) | 38.83 (15.93) | 0.281 |
| HRQOL(SF-12) | |||||
| PCS (0-100) | 48.51 (9.50) | 48.82 (9.84) | 47.53 (11.04) | 49.07 (8.37) | 0.825 |
| MCS (0-100) | 45.93 (10.53) | 47.57 (9.91) | 45.13 (10.18) | 44.91 (11.15) | 0.391 |
Abbreviations: CSQ, Coping Strategies Questionnaire; HAD, Hospital Anxiety and Depression Scale; PHQ12, Patient Health Questionnaire; SF-12, 12-Item Short Form Health Survey; VSI, Visceral Sensitivity Index; HRQOL, health related quality of life; PCS, physical composite score; MCS, mental composite score.