Should Aggressive Surgical Local Control Be Attempted in All Patients with Metastatic or Pelvic Ewing's Sarcoma?

Table 7

Determination of independent variables for Event Free Survival (EFS) with multivariate Cox regression analysis.

Multivariate Cox Regression EFS analysis of covariates
Variable	HR	95% CI	𝑃 value
Age			0.638
<14	1.00
≥14	1.56	0.26–8.56
Location			0.165
Appendicular	1.00
Axial	2.22	0.72–6.85
Multicentric metastatic disease			0.007^†
No	1.00
Yes	4.16	1.47–11.81
Bone or soft tissue			0.014^†
Bone	1.00
Soft tissue	5.19	1.40–19.23
Local radiation			0.397
No	1.00
Yes	1.55	0.56–4.27

^†: statistically significant independent variable on event free survival.