Correlation between abdominal computed tomography signs and postoperative prognosis for patients with colorectal cancer

Table 3 Multivariate Cox regression analysis of postoperative death in patients with colorectal cancer

Independent variable	B	SE	Wald	P value	OR	95%CI
BMI	0.409	0.139	8.621	0.003	1.506	1.146-1.979
Pathological stage			2.255	0.521
I	-7.741	222.369	0.001	0.972	0.000	0.000-8.303
II	0.957	0.780	1.504	0.220	2.603	0.564-12.003
III	1.052	0.712	2.183	0.140	2.865	0.709-11.569
Degree of tumor differentiation			1.749	0.417
Poorly differentiated	0.686	1.290	0.283	0.595	1.986	0.158-24.909
Moderately differentiated	-0.302	1.114	0.074	0.786	0.739	0.083-6.565
Degree of periintestinal infiltration			7.030	0.030
Mild	-12.450	167.468	0.006	0.941	0.000	0.000-1.390
Moderate	-1.784	0.673	7.025	0.008	0.168	0.045-0.628
Tumor size	1.522	0.660	5.322	0.021	4.581	1.257-16.691
Lymph node CT value	1.362	0.689	3.911	0.048	3.904	1.012-15.059
Mean tumor long-axis diameter	0.918	0.809	1.287	0.257	2.505	0.513-12.240

BMI: Body mass index; CT: Computed tomography; B: Regression coefficient β; SE: Standard error; OR: Odds ratio; CI: Confidence interval.