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

Table 4 Univariate analysis of cause-specific survival

Characteristic	HR	95%CI	P value
Age (yr)			0.399
< 60	1
≥ 60	0.928	0.78-1.104
Gender			0.117
Male	1
Female	0.874	0.738-1.034
Marital status			0.075
Married	1
Unmarried	1.165	0.985-1.380
Primary site			0.043
Left side colon	1
Right side colon	0.743	0.581-0.951
Rectum	0.858	0.649-1.134
Pathological grade			0.005
I-II	1
III	1.45	1.012-2.079
IV	1.872	1.259-2.783
Tumor size (cm)			< 0.001
< 2	1
2-4	2.593	1.352-4.975
≥ 4	3.651	1.95-6.835
T stage			< 0.001
T1	1
T2	0.366	0.174-0.769
T3	0.993	0.62-1.59
T4	2.807	1.764-4.467
N stage			< 0.001
N0	1
N1	2.704	2.052-3.563
N2	4.957	3.958-6.209
M stage			< 0.001
M0	1
M1	4.534	3.789-5.425
Surgery			< 0.001
Yes	1
No	0.631	0.573-0.696

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