Table 1.

Patient demographics, presenting symptom complexes, colonic evaluations, and prescribed medicines implicated in gastrointestinal bleeding (n = 654)

	n	%
Median age, years (interquartile range)	69 (62–77)
Female	368	56
Presenting symptoms and signs
Fulfil fast-track criteria CG27	480	74
Change of bowel habit and bleeding >40 years	96	15
Rectal bleeding >60 years	51	8
Change of bowel habit >60 years	290	45
Right abdominal mass	22	3
Rectal mass	25	4
Iron deficiency anaemia	26	4
Fulfil fast-track criteria NG12	603	92
Colonic evaluation
Full evaluation	537	82
Colonoscopy	373	57
CT colonography	126	19
Barium enema	38	6
CT abdomen and pelvis	138	21
Flexible sigmoidoscopy	161	25
Prescribed medicines implicated in GI bleeding
None	494	76
Aspirin	65	10
NSAID	28	4
Warfarin	32	5
NOAC	12	1.5
Anti-platelet therapy	27	4

GI =gastrointestinal. NOAC =new oral anticoagulant. NSAID =nonsteroidal anti-inflammatory drug.