Table 3 Univariate and stepwise multivariate logistic regression analyses of clinicopathological factors that related to death within 1-year in advanced oropharyngeal cancer patients

 Female

Ref.

Ref.

 Male

3.031

0.362

25.412

0.307

2.386

  < 60y

Ref.

Ref.

  ≥ 60y

1.698

0.830

3.473

0.147

2.200

 T1 + 2

Ref.

 T3 + 4

3.625

1.476

8.906

0.005*

 N0 + 1

Ref.

Ref.

 N2

1.202

0.500

2.892

0.681

1.050

 N3

3.625

1.080

12.167

0.037*

1.552

 III

Ref.

Ref.

 IVa

0.925

0.275

3.109

0.900

0.575

 IVb

6.250

1.678

23.275

0.006*

2.700

 Tonsil

Ref.

 Soft palate

0.552

0.113

2.695

0.463

 Tongue base

0.753

0.194

2.921

0.681

 Pharyngeal wall

2.563

1.060

6.196

0.037*

 R

Ref.

 L

1.019

0.496

2.092

0.960

 None

Ref.

 Yes

0.705

0.184

2.698

0.610

 None

Ref.

 Yes

1.250

0.466

3.351

0.657

 Well

Ref.

 Moderately + Poorly

0.705

0.345

1.441

0.338

 Positive

Ref.

 Negative

1.455

0.447

4.733

0.534

 No

Ref.

 Yes, quitted

1.022

0.374

2.798

0.966

 Yes, persistence

0.894

0.365

2.194

0.808

  < 22

Ref.

  ≥ 22

0.365

0.176

0.758

0.007*

  ≥ 13.5

Ref.

Ref.

  < 13.5

6.206

2.622

14.689

0.000*

5.846

  ≥ 1.85

Ref.

  < 1.85

1.690

0.792

3.606

0.175

  < 0.56

Ref.

  ≥ 0.56

1.354

0.663

2.765

0.405

  < 239

Ref.

  ≥ 239

5.152

2.243

11.830

0.000*

  < 7.5

Ref.

  ≥ 7.5

3.124

1.411

6.917

0.005*

  < 1.9

Ref.

  ≥ 1.9

0.692

0.313

1.533

0.364

  < 157

Ref.

  ≥ 157

2.100

1.004

4.373

0.049*

  < 5.1

Ref.

  ≥ 5.1

2.149

1.024

4.511

0.043*

  < 553.7

Ref.

  ≥ 553.7

4.199

1.479

11.922

0.007*

  <  1820

Ref.

Ref.

  ≥ 1820

8.212

3.066

21.995

0.000*

4.777