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Table 3 Results of multivariate analysis for independent variables associated with death and EFS

From: What is the impact of local control in Ewing sarcoma: analysis of the first Brazilian collaborative study group – EWING1

 

EFS

p

LF

p

Variables

HR (95% CI)

HR (95% CI)

Type of treatment

 Surgery

1.00

 

1.00

 

 Surgery + Radiotherapy

0.88 (0.28–2.74)

0.829

*

*

 Radiotherapy

1.84 (0.63–5.41)

0.267

1.01 (0.08–12.8)

0.991

Age group

   

-

  ≤ 15 years

1.00

 

-

 

  > 15 years

2.12 (0.96–4.71)

0.064

-

 

Risk group

   

-

 Low

1.00

 

-

 

 High

1.41 (0.53–3.71)

0.489

-

 

LDH

  ≥ 1.5 x ULN

-

 

6.28 (0.50–79.1)

0.155

  < 1.5 x ULN

-

 

1.00

 
  1. *It is not possible to estimate risk because the interval tends to infinity
  2. EFS event-free survival, LF local failure, HR hazard ratio, 95% CI, 95% confidence interval, LDH lactate dehydrogenase, ULN upper limit of normal