Table 1.
Demographic data of included sample.
| Total Sample | Non-IBS | IBS | Difference | |
|---|---|---|---|---|
| N | 1158 | 994 (85.8%) | 164 (14.2%) | |
| Female | 658 (56.8%) | 552 (55.5%) | 106 (64.6%) | .036 |
| Age mean (SD), y | 48.61 (13.34) | 49.45 (13.18) | 43.50 (13.20) | <.001 |
| GI consultation | 604 (52.2%) | 493 (49.6%) | 111 (67.7%) | <.001 |
| University education | 676 (58.4%) | 578 (58.1%) | 98 (59.8%) | .782 |
| Household size mean (SD) | 2.16 (1.08) | 2.15 (1.08) | 2.24 (1.09) | .317 |
GI: gastrointestinal; IBS: irritable bowel syndrome. Non-IBS and IBS: absence and presence of Rome III IBS diagnosis. GI consultation: any previous consultation for abdominal complaints.
Difference column shows p values of tests (chi-square or t-test) of difference between non-IBS and IBS.