Table 3 Two models of prognostic factors in patients with micSCC were multivariablely analyzed

Age

 < 0.0001

1.069

1.037–1.101

0.0005

1.059

1.026–1.094

Sex

 Male

reference

reference

 Female

0.6146

0.729

0.213–2.492

0.7458

0.775

0.166–3.620

Race

 White

reference

reference

 Black

0.9349

0.950

0.279–3.232

0.9312

1.058

0.297–3.770

 Other

0.1216

0.308

0.070–1.367

0.2548

0.370

0.067–2.049

Marital status

 Married

reference

reference

 Single

0.0588

2.538

0.966–6.668

0.1503

2.149

0.758–6.093

 DSW

0.1184

2.111

0.826–5.393

0.2340

1.894

0.662–5.418

AJCC stage

 I

reference

reference

 II

0.0503

0.127

0.016–1.003

0.1665

0.238

0.031–1.817

 III

0.6348

0.607

0.077–4.772

0.7664

1.459

0.121–17.669

 IV

0.2782

5.366

0.257–111.839

0.1146

15.720

0.513–481.776

Summary of Stage

 Local

reference

reference

 Regional

0.1179

3.883

0.709–21.263

0.5508

2.323

0.146–37.029

 Distant

0.7520

0.579

0.020–17.174

0.6178

0.273

0.002–44.879

Radiation

 Yes

reference

reference

 No/unknow

0.4247

0.501

0.092–2.731

0.7637

0.667

0.048–9.338

Chemotherapy

 Yes

reference

reference

 No/unknow

0.3874

0.448

0.072–2.768

0.3931

0.379

0.041–3.514

Surgery

 Yes

reference

reference

 No/unknow

0.6010

0.678

0.158–2.907

0.5928

0.592

0.086–4.049

Regional lymph nodes removal

 Yes

reference

reference

 No

0.4175

0.396

0.042–3.722

0.4868

0.418

0.036–4.879

Tumor size

  ≤ 2 cm

reference

reference

 2 < X ≤ 4

0.0288

4.871

1.178–20.145

0.0270

4.422

1.185–16.509

  > 4

0.0003

15.717

3.485–70.883

0.0021

12.003

2.466–58.424

Regional node Examed

 Yes

reference

reference

 No

0.4824

2.101

0.265–16.680

0.5593

1.914

0.216–16.922

Income

  < $55,000

reference

reference

 $55,000 ~ $75,000

0.0036

16.573

2.499–109.930

0.0045

17.596

2.431–127.369

  > $75,000

0.0071

13.224

2.020–86.584

0.0104

13.939

1.858–104.587

MFDTT

0.1606

0.743

0.491–1.125

0.2063

0.790

0.547–1.139