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Table 3 Univariate and multivariate analysis of cancer-specific survival in the training cohort

From: Establishment of prognostic nomogram for elderly colorectal cancer patients: a SEER database analysis

Variables

Univariate analysis

Multivariate analysis

P

P

HR (95% CI)

Sex

0.644

  

 Male

 

 Female

 

Age

< 0.001

  

  < =76

 

Reference

 

 77–86

 

1.499(1.412–1.592)

< 0.001

  > =87

 

2.252(2.083–2.435)

< 0.001

Marital status

< 0.001

  

 Unmarried

 

Reference

 

 Married

 

0.836(0.791–0.884)

< 0.001

 Unknown

 

1.011(0.896–1.140)

0.865

Tumor site

< 0.001

  

 Colon

 

Reference

 

 Rectum

 

1.088(1.011–1.171)

0.024

Grade

< 0.001

  

 I

 

Reference

 

 II

 

1.061(0.943–1.194)

0.326

 III

 

1.324(1.168–1.502)

< 0.001

 IV

 

1.417(1.212–1.657)

< 0.001

 Unknown

 

1.100(0.916–1.321)

0.308

SEER_stage

< 0.001

  

 Localized

 

Reference

 

 Regional

 

1.492(1.343–1.657)

< 0.001

 Distant

 

1.883(1.507–2.354)

< 0.001

AJCC_stage

< 0.001

  

 I

 

 II

 

 III

 

 IV

 

AJCC_T

< 0.001

  

 T1

 

Reference

 

 T2

 

1.417(1.185–1.694)

< 0.001

 T3

 

2.244(1.912–2.634)

< 0.001

 T4

 

3.914(3.301–4.640)

< 0.001

AJCC_N

< 0.001

  

 N0

 

Reference

 

 N1

 

1.561(1.444–1.687)

< 0.001

 N2

 

2.426(2.237–2.631)

< 0.001

AJCC_M

< 0.001

  

 M0

 

Reference

 

 M1

 

2.160(1.743–2.677)

< 0.001

Bone metastasis

< 0.001

  

 No

 

Reference

 

 Yes

 

1.360(1.021–1.812)

0.036

 Unknown

 

1.600(0.934–2.743)

0.087

Brain metastasis

< 0.001

  

 No

 

Reference

 

 Yes

 

2.424(1.564–3.756)

< 0.001

 Unknown

 

0.602(0.346–1.049)

0.073

Liver metastasis

< 0.001

  

 No

 

Reference

 

 Yes

 

1.414(1.280–1.563)

< 0.001

 Unknown

 

1.047(0.724–1.514)

0.807

Lung metastasis

< 0.001

  

 No

 

Reference

 

 Yes

 

1.359(1.200–1.539)

< 0.001

 Unknown

 

1.439(1.020–2.029)

0.038

Tumor size

< 0.001

  

  < =3.4

 

Reference

 

 3.5–5.9

 

1.017(0.942–1.097)

0.670

  > =6

 

1.186(1.095–1.283)

< 0.001

 Unknown

 

1.394(1.221–1.592)

< 0.001