Table 5 Multivariate Cox regression analysis

Overall survival

Tumor size 

0.002^*

2.509

1.414 to 4.454

TNM stage 

NS

—

—

Differentiation 

NS

—

—

Tumor encapsulation 

NS

—

—

Vascular invasion 

0.004^*

2.305

1.304 to 4.073

Gli2 expression 

0.007^*

2.239

1.244 to 4.028

Disease-free survival

Tumor size 

NS

—

—

Tumor encapsulation 

0.001^*

2.763

1.534 to 4.977

Vascular invasion 

0.002^*

2.516

1.397 to 4.533

Gli2 expression 

0.042^*

1.917

1.025 to 3.584