Table 1.

Symptoms at time of presentation in Canadian children and adolescents with new-onset inflammatory bowel disease [IBD]. Comparisons are made between children determined to have Crohn’s disease and those with ulcerative colitis or IBD-unclassified.

Percentage of patients with symptom present at time of diagnosis	Crohn’s disease [n = 698]	Ulcerative colitis/inflammatory bowel disease unclassified [n = 394]	p-value
Abdominal pain	88% [a major symptom in 51%]	81% [a major symptom in 32%]	0.17
			0.002
Non-bloody diarrhoea	30%	5%	<0.001
Bloody diarrhoea	40% [a major symptom in 18%]	87% [a major symptom in 60%]	<0.001
			<0.001
Linear growth impairment	22%	3%	<0.001
Any weight loss	71%	62%	0.004
Perianal lesion[s] [skin tags/fissures/fistula[s]/ abscess[es]	27%	2%	<0.001
Extra-intestinal manifestation[s] [joint inflammation/skin lesions]	15%	1.2%	<0.001
Oral ulcers	29%	9%	<0.001
Fevers	28%	11%	<0.001