[Table/Fig-2]:

Univariate and multivariate analysis: mortality risk factors in elderly colorectal cancer patients

Total population (n=124)	Dead (n=20)	Alive (n=104)	Pu	OR u(95% CI)	PM	β	OR M(CI 95%)
Age
<85 years	13 (12%)	95 (88%)	0.005	5.7(1.8-17.9)	0.123
≥85 years	7 (43.8%)	9 (56.2%)
ASA score
I-II	4 (6.2%)	60 (93.8%)	0.002	5.45(1.7-17.45)	0.005	1.793	6(1.725-20.93)
III-IV	16 (26.7%)	44 (73.3%)
Diabetes mellitus
Yes	5 (26.3%)	14 (73.7%)	0.19
No	15 (14.3%)	90 (85.7%)
Anemia
Yes	3 (14.3%)	18 (85.7%)	0.8
No	17 (16.5%)	86 (83.5%)
Cardiac disease
Yes	6 (31.6%)	13 (68.4%)	0.047	3(0.98-9.186)	0.31
No	14 (13.3%)	91 (86.7%)
Emergency admittance
Yes	15 (35.7%)	27 (64.3%)	<10-3	8.56(2.83-25.78)	0.94
No	5 (6.1%)	77 (93.9%)
Obstruction
Yes	13 (37.1%)	22 (62.9%)	<10-3	6.9(2.46-19.43)	0.9
No	7 (7.9%)	82 (92.1%)
Bowel perforation
Yes	5 (50%)	5 (50%)	0.01	6.6(1.7-25.54)	0.22
No	15 (13.2%)	99 (86.8%)
Resection class
R0	13 (12.4%)	92 (87.6%)	0.015	4.13(1.37-12.38)	0.34
R1	7 (36.8%)	12 (63.2%)
Rectum
Yes	7 (14.9%)	40 (85.1%)	0.7
No	13 (16.9%)	64 (83.1%)
Emergency surgery
Yes	15 (36.6%)	26 (63.4%)	<10-3	9(2.98-27.18)	<10-3	2.27	9.7(3.03-30.98)
No	5 (6%)	78 (94%)

ASA: anesthesia risk score defined by American Anesthesiology Association; Pu : univariate p-value; PM :multivariate logistic regression P value; ORu :univariate odds Ratio; ORM(CI 95%): multivariate logistic regression Odds Ratio; CI: confidential Interval. β0= -3.903