Table 4.

Independent risk factor identification (multivariate logistic regression analysis)

Factors	Odds ratio	p-value	95% confidence interval
			Lower	Upper
Age	1.11	0.012	1.02	1.21
CEA	13.98	<0.01	3.69	52.98
Rad score	4.72	<0.001	2.45	9.09

OR, odds ratio; 95 % CI, 95% confidence interval; CEA, carcinoembryonic antigen; A/G, albumin to globulin ratio