Table 4 Association between radiation and long-term outcomes of subgroup patients with liver metastasis

Age

≤ 60 years

0.452

[0.223,0.917]

0.028

0.442

[0.210,0.931]

0.032

> 60 years

0.652

[0.457,0.930]

0.018

0.612

[0.421,0.890]

0.010

Gender

male

0.627

[0.396,0.993]

0.047

0.649

[0.402,1.047]

0.076

female

0.594

[0.386,0.916]

0.018

0.500

[0.312,0.799]

0.004

Chemotherapy

no

0.837

[0.257,2.722]

0.767

0.604

[0.146,2.495]

0.486

yes

0.559

[0.401,0.778]

0.001

0.523

[0.368,0.743]

< 0.001

Treatment delay time

no

0.569

[0.342,0.946]

0.03

0.558

[0.327,0.953]

0.033

yes

0.654

[0.435,0.982]

0.041

0.599

[0.389,0.924]

0.020

Clinical stage IV

0.622

[0.455,0.851]

0.003

0.580

[0.417,0.808]

0.001