Table 2

Initial investigation

	All IBD (%)	CD (%)	IC (%)	UC (%)
CD, Crohn’s disease; IC, indeterminate colitis; UC, ulcerative colitis; OGD, oesophagoduodenoscopy; BaFTT + WCC, barium follow through and radiolabelled white cell scan.
**p<0.001, χ² test.
OGD	48	67	42	31	**
BaFTT	65	78	59	38	**
Colonoscopy	82	82	84	78	NS
Barium enema	8	7	6	11	NS
Sigmoidoscopy	30	23	39	41	**
WCC	28	37	25	17	**
Colonoscopy + sigmoidoscopy	16	14	23	20	NS
BaFTT + WCC	16	21	14	5	**