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

Table 1 Patient characteristics and 1-, 3-, and 5-yr overall survival and cause-specific survival rates

Characteristic	n	%	OS (%)			CSS (%)
			1-yr	3-yr	5-yr	1-yr	3-yr	5-yr
Age (yr)
< 60	436	35.4	78.7	49.9	41.5	78.4	52.3	44.8
≥ 60	794	64.6	72.0	46.9	39.0	74.9	55.6	52.2
Gender
Male	631	51.3	74.4	45.8	39.2	76.3	51.3	46.8
Female	599	48.7	74.3	50.1	40.6	76.0	57.8	52.5
Marital status
Married	683	55.5	78.1	51.8	43.4	79.2	56.2	51.5
Unmarried	547	44.5	69.7	44.4	36.1	72.3	52.3	47.2
Primary site
Left side colon	806	65.5	73.9	49.6	41.2	76.5	57.3	52.9
Right side colon	282	22.9	74.0	46.1	38.7	75.8	51.1	46.0
Rectum	142	11.5	72.4	42.7	34.5	75.0	45.6	38.9
Pathological grade
I-II	93	7.6	76.3	60.2	51.6	80.2	66.8	60.5
III	927	75.4	72.3	49.0	40.4	75.7	55.2	50.7
IV	210	17.1	71.5	36.8	31.4	76.1	44.5	38.8
Tumor size (cm)
< 2	57	4.6	93.0	73.8	63.4	96.4	81.8	75.7
2-4	246	20.0	83.6	54.6	44.4	86.8	59.4	54.0
≥ 4	927	75.4	68.2	44.5	37.1	72.0	51.4	46.7
T stage
T1	55	4.5	80.0	70.1	59.0	81.5	71.4	60.1
T2	77	6.3	92.2	77.2	65.8	94.8	86.7	83.5
T3	607	49.3	80.0	59.7	52.0	84.2	67.4	63.5
T4	491	39.9	59.1	25.7	17.3	62.4	30.3	23.5
N stage
N0	467	38.0	86.3	70.4	61.4	90.3	79.0	75.4
N1	231	18.8	75.1	45.7	36.4	78.6	52.5	46.2
N2	532	43.3	59.1	27.5	19.6	62.4	31.4	24.6
M stage
M0	956	77.	80.6	58.0	48.7	84.8	65.7	60.4
M1	274	22.3	44.1	9.9	6.0	46.0	11.8	8.0
TNM stage
I	95	7.7	91.6	80.9	68.9	93.6	86.1	80.7
II	346	28.1	87.8	71.4	62.7	92.6	81.4	78.0
III	515	41.9	76.1	43.9	33.7	77.8	50.0	42.1
IV	274	22.3	44.1	9.9	6.0	46.0	11.8	8.0
Surgery
Yes	63	5.1	74.6	50.3	41.8	78.2	56.9	51.8
No	1167	94.9	33.3	2.2	2.2	36.9	3.0	3.0

OS: Overall survival; CSS: Cause-specific survival; TNM: Tumor-node-metastasis.