B

p

HR

95% CI for HR

Lower

Upper

Sex (female)

-0.093

0.359

0.911

0.747

1.112

Age (older than 70)

0.048

0.517

1.049

0.908

1.211

Histologic type (adenocarcinoma)

0.034

0.694

1.034

0.875

1.223

 Histologic type (small cell)

0.184

0.050

1.203

1.000

1.446

 Histology (others)

-0.083

0.513

0.920

0.716

1.182

Stage (localized)

0.306

0.008

1.357

1.082

1.703

Stage (advanced)

0.727

0.000

2.068

1.641

2.605

Surgery (yes)

-1.083

0.000

0.339

0.246

0.465

Chemotherapy (yes)

-0.308

0.020

0.735

0.568

0.952

Radiation therapy (yes)

-0.261

0.002

0.770

0.652

0.910

Palliative (yes)

0.341

0.023

1.406

1.048

1.887

▪ HR: Hazard ratio
▪ B: Cox regression coefficient
Table 5: Multivariable analysis of the prognostic factors for LC.