Table 2 Univariate and multivariate analyses for OS in patients with P-MEC.

From: Machine learning-based survival prediction nomogram for postoperative parotid mucoepidermoid carcinoma

Characteristics

Univariable analysis

Multivariable analysis

HR (95% CI)

P-value

HR (95% CI)

P-value

Age

 

 < 0.001

  

  < 40

Reference

 

Reference

 

 40–50

1.453 (0.628–3.363)

0.383

1.305 (0.561–3.036)

0.536

 50–60

3.282 (1.656–6.505)

 < 0.001

2.594 (1.286–5.234)

0.008

 60–70

7.195 (3.766–13.746)

 < 0.001

5.936 (3.016—11.681)

 < 0.001

  ≥ 70

18.925 (10.379—34.508)

 < 0.001

11.962 (6.303—22.703)

 < 0.001

Gender

 

 < 0.001

  

 Female

Reference

 

Reference

 

 Male

2.112 (1.563–2.855)

 < 0.001

1.101 (0.797–1.522)

0.560

Race

 

 < 0.001

  

 White

Reference

 

Reference

 

 Black

0.533 (0.319–0.891)

0.016

1.444 (0.840–2.483)

0.184

 Other

0.437 (0.237–0.806)

0.008

0.839 (0.449–1.570)

0.584

Grade

 

 < 0.001

  

 I

Reference

 

Reference

 

 II

1.668 (0.975–2.856)

0.062

1.346 (0.773–2.343)

0.294

 III

6.837 (3.981–11.741)

 < 0.001

2.324 (1.235–4.375)

0.009

 IV

9.505 (5.654–15.978)

 < 0.001

3.148 (1.710–5.795)

 < 0.001

Stage

 

 < 0.001

  

 I

Reference

 

Reference

 

 II

1.668 (1.029–2.706)

0.038

0.481 (0.145–1.596)

0.232

 III

3.353 (2.173–5.175)

 < 0.001

0.480 (0.149–1.544)

0.218

 IVA

5.950 (3.970–8.917)

 < 0.001

0.462 (0.130–1.638)

0.232

Tumor (T) stage

 

 < 0.001

  

 T1

Reference

 

Reference

 

 T2

2.199 (1.454–3.325)

 < 0.001

3.162 (1.059–9.440)

0.039

 T3

4.210 (2.773–6.390)

 < 0.001

4.300 (1.501–12.316)

0.007

 T4

5.440 (3.534–8.376)

 < 0.001

4.414 (1.439- 13.535)

0.009

Node (N) stage

 

 < 0.001

  

 N0

Reference

 

Reference

 

 N1

2.972 (2.067–4.274)

 < 0.001

1.807 (0.226–14.438)

0.577

 N2

4.849 (3.400–6.916)

 < 0.001

2.517 (0.300–21.156)

0.395

Radiation

 

 < 0.001

  

 No

Reference

 

Reference

 

 Yes

2.074 (1.531–2.810)

 < 0.001

0.750 (0.525–1.072)

0.114

Chemotherapy

 

 < 0.001

  

 No/unknown

Reference

 

Reference

 

 Yes

3.871 (2.569–5.832)

 < 0.001

1.721 (1.096–2.703)

0.018

Laterality

 

0.648

  

 Left

Reference

   

 Right

0.935 (0.702–1.246)

0.648

  

Marriage

 

0.327

  

 No

Reference

   

 Yes

0.866 (0.649–1.154)

0.326

  

Lymph node ratio 9%)

 

 < 0.001

  

 LNR0

Reference

 

Reference

 

 LNR1

3.647 (2.731–4.869)

 < 0.001

0.868 (0.114–6.602)

0.891

  1. Statistical significance indicated by P < 0.05 has been denoted in bold.