| Clinical symptoms | Number of cases n (%) | 
| Sex | 
 | 
| Male | 27 (61.4) | 
| Female | 17 (38.6) | 
| Family History | 
 | 
| None | 44 (100) | 
| Site of Disease | 
 | 
| Colon | 0 (0.0) | 
| Distal ileum | 17 (38.6) | 
| Ileocolon | 27 (61.4) | 
| Upper digestive tract | 0 (0.0) | 
| Upper gastrointestinal involvement | 
 | 
| Yes | 13 (29.5) | 
| Past history of intestinal surgery | 
 | 
| Yes | 12 (27.3) | 
| Perianal lesion | 
 | 
| Yes | 31 (70.5) |