Table 4.

Location and Behavior of CD and Extent of UC at Diagnosis

Variable	CD	UC	p-value
Esophagogastroduodenoscopy
Esophagus	19 (8.4)	2 (2.5)	0.126
Stomach	83 (36.6)	10 (12.5)	<0.001
Duodenum	47 (20.7)	6 (7.5)	0.012
Non-caseating granuloma	5 (2.2)	-	NA
Small bowel and perianal evaluation
Duodenum	3 (1.3)	0	0.710
Jejunum	31 (13.7)	2 (2.5)	0.010
Proximal ileum	33 (14.5)	1 (1.2)	0.002
Distal ileum	84 (37.0)	2 (2.5)	<0.001
Terminal ileum	151 (66.5)	8 (10.0)	<0.001
Perianal fistula/abscess	87 (38.3)	0	<0.001
Colonoscopy
Terminal ileum	141 (62.1)	13 (16.2)	<0.001
Caecum	138 (60.8)	39 (48.8)	0.081
Ascending colon	139 (61.2)	43 (53.8)	0.299
Transverse colon	135 (59.5)	46 (57.5)	0.860
Descending colon	130 (57.3)	50 (62.5)	0.493
Sigmoid colon	135 (59.5)	52 (65.0)	0.460
Rectum	119 (52.4)	67 (83.8)	<0.001
Non-caseating granuloma	88 (38.8)	-	NA
Endoscopic scores
SES-CD	20 (9–27)	-	NA
Mayo endoscopic score	-	2 (2–3)	NA

Data are presented as number (%) or median (interquartile range).

CD, Crohn’s disease; UC, ulcerative colitis; SES-CD, simple endoscopic score for CD; NA, not applicable.