Table 3.

Bivariate analysis of factors associated with mortality among subjects with colorectal cancer

Factors	% of Death	OR*	95% CI**	P
Sex				0.236
Female	58 (51.33)	1
Male	68 (59.13)	1.37	0.81-2.32
Age (years)				0.030
An increasing and every 10 years	NA***	1.24	1.02-1.53
Marital status				0.336
Single	4 (36.36)	1
Married/Widow/Divorced	111 (51.15)	1.83	0.52-6.44
Religion				0.980
Buddhism	111 (50.45)	1
Others (Islam and Christian)	4 (50.00)	0.98	0.55-2.09
Residential area				0.428
Rural	79 (48.77)	1
Urban	36 (54.55)	1.26	0.71-2.24
Tumor location				0.116
Colon (Cecum to Descending, Colon NOS)	42 (47.73)	1
Sigmoid	21 (41.18)	0.77	0.38-1.54
Rectum (Recto sigmoid, Rectum: NOS)	52 (58.43)	1.54	0.85-2.79
Histological type				0.959
Other carcinoma	15 (50.00)	1
Adenocarcinoma	100 (50.51)	1.02	0.47-2.19
Grade of differentiation				0.053
Low	91 (47.64)	1
High	24 (64.86)	2.03	0.98-4.22
Staging				<0.001
I and II	17 (29.82)	1
III	37 (52.11)	2.56	1.23-5.33
IV	20 (86.96)	15.69	4.11-59.88
Unknown	41 (53.25)	2.67	1.30-5.52
Extension of colorectal cancer				0.141
In situ/Localization/Direct Extension	38 (44.19)	1
Regional Lymph Node/Distant Metastasis/Not Otherwise Specified (NOS)	77 (54.23)	1.49	0.87-2.56
Metastasis				0.567
No	20 (46.51)	1
Yes	95 (51.35)	1.21	0.62-2.36
Treatment				<0.001
Surgery	22 (28.57)	1
Chemotherapy/radiotherapy	13 (56.52)	3.25	1.24-8.50
Surgery and postoperative care	47 (50.54)	2.55	1.35-4.84
Not surgery	33 (94.29)	41.25	9.11-186.82
Health insurance				0.952
Government/Enterprise/Social security	34 (50.75)	1
Universal coverage	81 (50.31)	0.98	0.56-1.74

*OR=Odds ratios, **95% CI=95 percent confidence interval, ***NA=Not available