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Table 2 Univariate and multivariate Logistic regression for risk factors of metastasis in Ewing tumor patients

From: Risk factors for metastasis and poor prognosis of Ewing sarcoma: a population based study

 UnivariateMultivariate
VariablesOR (95% CI)p valueOR (95% CI)p value
Age (years)
 ≤ 10Reference0.012*Reference0.144
 11–201.840 (1.271–2.665)0.001**1.517 (1.033–2.228)0.034*
 21–301.973 (1.273–3.058)0.002**1.659 (1.054–2.610)0.029*
 31–491.440 (0.826–2.511)0.1991.388 (0.780–2.470)0.264
 ≥ 502.108 (1.009–4.403)0.047*2.082 (0.977–4.438)0.058
Gender
 MaleReference   
 Female1.013 (0.775–1.324)0.926  
Race    
 WhiteReference0.751  
 Black1.346 (0.622–2.910)0.451  
 Other0.994 (0.610–1.618)0.980  
Primary site
 LimbReference< 0.001***Reference< 0.001***
 Cranial0.355 (0.150–0.843)0.019*0.486 (0.201–1.176)0.110
 Spine0.851 (0.482–1.502)0.5771.033 (0.572–1.865)0.914
 Thoracic1.212 (0.812–1.808)0.3471.245 (0.830–1.867)0.289
 Pelvic2.679 (1.975–3.635)< 0.001***2.492 (1.829–3.395)< 0.001***
Tumor size (cm)
 < 5Reference< 0.001***Reference0.005**
 5–81.598 (1.040–2.456)0.033*1.362 (0.871–2.131)0.176
 > 82.624 (1.764–3.903)< 0.001***1.914 (1.251–2.928)0.003**
  1. OR odds ratio
  2. p value < 0.05*, < 0.01**, < 0.001***