Table 3 Univariate Analysis for recurrence-free survival (RFS) and overall survival (OS)

Age

1.001

0.9729–1.03

0.942

1.018

0.9932–1.043

0.157

Sex

0.7161

0.3755–1.366

0.308

0.755

0.4312–1.321

0.323

Normal ECOG

0.3812

0.213–0.6823

0.002

0.333

0.2009–0.5518

< 0.001

UICC stage

1.14

0.6254–2.079

0.668

1.163

0.6781–1.996

0.582

No smoking history

0.2293

0.05573–0.9431

0.026

0.314

0.1142–0.8635

0.018

Chemotherapy

(full dose)

0.5653

0.3158–1.012

0.052

0.555

0.335–0.9195

0.021

Tumor volume

1.015

1.008–1.021

< 0.001

1.011

1.005–1.017

< 0.001

NLR

4.059

2.315–7.117

< 0.001

2.311

1.438–3.714

< 0.001