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Table 3 Multivariable Cox proportional hazard regression analyses for mortality in primary trachea tumor patients with surgery

From: The impact of surgery and age on mortality with primary trachea malignant tumors: a retrospective study based on propensity-score matching analysis

 

Multivariable analysis

Variables

HR

95% CI

P-Value

Age (year)

   

 < 65

1

reference

 

 ≥ 65

2.237

1.159–4.321

0.016

Chemotherapy

   

 No

1

reference

 

 Yes

1.526

0.558–4.174

0.410

Histological types

   

 SCC

1

reference

 

 SGC

0.296

0.144–0.608

0.001

 Other/unknown

0.208

0.077–0.558

0.002

Extension

   

 E1

1

reference

 

 E2

0.955

0.184–4.966

0.956

 E3

0.648

0.209–2.013

0.453

 E4

6.174

1.064–35.82

0.042

 Ex

1.351

0.101–18.07

0.820

 N classification

   

 N0

1

reference

 

 N1

3.517

0.769–16.09

0.105

 Nx

0.261

0.024–2.888

0.273

M classification

   

 M0

1

reference

 

 M1

9.210

1.485–57.13

0.017

 M2

4.155

0.551–31.35

0.167

  1.  h: hazard ratio, CI: confidence interval, SCC: squamous cell carcinoma, SGC: salivary gland-type carcinoma
  2. Cox regression’s method was the Enter selection. Sex, marital status, radiotherapy, tumor size, and grade did not enter into the multivariable regression because the two-sided P values were over 0.05
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Journal of Cardiothoracic Surgery

ISSN: 1749-8090

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