Table 2. The relationship between clinico-pathological variables and survival in patients undergoing potentially curative resection for colorectal cancer; univariate survival analysis.

		Cancer-specific survival		Overall survival
Variable	320 (%)	Hazard ratio (95% CI)	P-value	Hazard ratio (95% CI)	P-value
Age
⩽64	111 (35)
65–74	102 (32)
⩾75	107 (33)	1.66 (1.26, 2.18)	0.001	1.80 (1.45, 2.23)	<0.001
Sex
Male	170 (53)
Female	150 (47)	1.30 (0.84, 2.01)	0.25	1.18 (0.84, 1.66)	0.34
Deprivation
1–2	12 (4)
3–5	99 (31)
6–7	209 (65)	1.11 (0.74, 1.65)	0.46	0.98 (0.72, 1.32)	0.77
Smoking
Never	135 (42)
Current/previous	185 (58)	1.62 (1.02, 2.55)	0.04	1.67 (1.17, 2.39)	0.004
Presentation
Elective	307 (96)
Emergency	13 (4)	3.93 (1.80, 8.56)	<0.001	3.00 (1.53, 5.94)	0.001
Tumour site
Colon	197 (62)
Rectum	123 (38)	0.84 (0.53, 1.32)	0.45	1.09 (0.77, 1.54)	0.62
Differentiation
Well/ moderate	286 (89)
Poor	34 (11)	1.26 (0.63, 2.52)	0.51	1.58 (0.96, 2.59)	0.07
Dukes stage
Dukes A	38 (12)
Dukes B	153 (48)
Dukes C	129 (40)	2.21 (1.51, 3.21)	<0.001	1.60 (1.21, 2.10)	0.004
Adjuvant therapy
No	254 (79)
Yes	66 (21)	1.00 (0.59, 1.69)	0.99	0.90 (0.59, 1.37)	0.61
mGPS
Low (0)	194 (61)
Intermediate (1)	90 (28)
High (2)	36 (11)	1.71 (1.29, 2.27)	<0.001	1.60 (1.28, 2.01)	<0.001
POSSUM physiology score
Group 1 (11–14)	109 (34)
Group 2 (15–20)	134 (42)
Group 3 (21–30)	69 (21)
Group 4 (>30)	8 (3)	1.73 (1.33, 2.25)	<0.001	1.59 (1.29, 1.96)	<0.001

Abbreviation: CI=confidence interval.