Table 1. Patient demographic information.

Agea	Sex	Tumour site	Duke's stage	Drug history	Tobacco use	Alcoholb
72	M	Colon	B	None	No	8+
68	M	Colon	C	N/A	No	N/A
66	F	Colon	C1	5-Fluorouracil, Enalapril	No	0
69	M	Rectum	C	Co-codamol	No	1–7
49	F	Colon	B	N/A	Yes	N/A
63	F	Rectum	N/A	N/A	No	N/A
52	M	Rectum	C1	Adalat	No	1–7
75	M	Colon	C	N/A	No	N/A
68	M	Colon	B	Atenolol, Prednisolone, Warfarin, Diltiazem, Isosorbide, Gliclazide, Co-danthramer	No	1–7
69	M	Rectum	C1	Atenolol	No	8+
70	F	Rectum	B	Lithium, Thyroxine	No	8+
72	M	Rectum	B	Captopril, Naproxen, Allopurinol, Isosorbide, Frusemide, Atenolol, Prochlorperazine	No	1–7
78	M	Colon	A	N/A	No	N/A
56	M	Colon	A	None	No	8+
76	M	Colon	A	None	No	1–7
44	M	Colon	C	N/A	No	N/A
58	F	Colon	N/A	None	No	0
61	F	Rectum	A	N/A	No	N/A
66	F	Colon	B	None	No	0
54	M	Rectum	C1	None	No	1–7
49	M	Colon	B	None	No	8+
73	F	Colon	B	N/A	Yes	N/A
52	M	Rectum	B	None	No	8+
68	M	Colon	B	Salbutamol, Ferrous sulphate	No	0
63	F	Rectum	A	Salbutamol, Beclomethasone, Bendrofluazide	No	1–7
56	M	Colon	C	Losec	No	8+
68	M	Rectum	B	Sotalol, Aspirin	No	8+
80	F	Rectum	B	None	No	0
59	M	Rectum	C1	None	No	8+
66	M	Rectum	N/A	None	Yes	8+

N/A=not available.

^aAge in years.

^bAlcohol consumption in units per week (1 unit=half a pint of beer or one glass of wine or one shot of spirits).