Prognostic nomograms for predicting overall survival and cause-specific survival of signet ring cell carcinoma in colorectal cancer patients

Table 5 Multivariate Cox regression model analysis of cause-specific survival

Characteristic	HR	95%CI	P value
Primary site			0.112
Left side colon
Right side colon
Rectum
Pathological grade			0.382
I-II
III
IV
Tumor size (cm)			0.001
< 2	1
2-4	1.938	0.984-3.816
≥ 4	2.509	1.297-4.855
T stage			< 0.001
T1	1
T2	0.362	0.169-0.774
T3	0.612	0.366-1.023
T4	0.968	0.576-1.626
N stage			< 0.001
N0	1
N1	1.968	1.475-2.624
N2	3.411	2.642-4.406
M stage			<0.001
M0	1
M1	2.198	1.796-2.689
Surgery			< 0.001
Yes	1
No	0.3	0.217-0.414

HR: Hazard ratio; CI: Confidence interval; TNM: Tumor-node-metastasis.