Table 4 Cox proportional-hazards regression model for predicting overall survival

Age > 60 years

0.7376

0.6948

1.1271

0.2884

2.0910

0.5357 to 8.1619

Presence of Comorbidity

−0.1156

0.6372

0.03291

0.8560

0.8908

0.2555 to 3.1057

Multifocality

0.5661

0.6947

0.6641

0.4151

1.7615

0.4514 to 6.8743

Lack of adjuvant RAI therapy

1.6883

0.6607

6.5299

0.0106

5.4102

1.4819 to 19.7516