| Item | Frequency | ||
| Number of patients | 292 | ||
| Females/males | 133/159 | ||
| Age (years; mean ± SD) | 35 ± 11.4, range 15 - 67 | ||
| CD/UC/not determined | 216/75/1 | ||
| Crohn’s disease location |
| ||
|
| L1 | ileum | 13% |
|
| L2 | colon | 31% |
|
| L3 | ileocolonic | 49.5% |
|
| not responded | 6.5% | |
| Crohn’s disease, disease duration (yrs) |
| ||
|
| <1 year | 0% | |
|
| 1 - 5 years | 32.4% | |
|
| >5 years | 65.3% | |
|
| not responded | 2.3% | |
| UC patients disease extent |
| ||
|
| proctitis | 16.2% | |
|
| left sided colitis | 29.7% | |
|
| pancolitis | 55.4% | |
|
| not responded | 2.7% | |
| Ulcerative colitis, disease duration (yrs) |
| ||
|
| <1 year | 0% | |
|
| 1 - 5 years | 34.7% | |
|
| >5 years | 65.3% | |
| Active smokers |
| ||
|
| CD | 17% | |
|
| UC | 10.7% | |
| Educational level |
| ||
|
| No education | 0% | |
|
| Elementary school | 7.2% | |
|
| High school | 46.9% | |
|
| Apprenticeship and college program | 31.5% | |
|
| University degree | 11.3% | |
|
| Not responded | 3.1% | |