Table 2:

Factors predictive of local recurrence in Cox regression analysis.

	Hazard Ratio	95% Confidence Interval	p-value
Ewing Sarcoma	0.4	0.15–1.1	0.075
Age <6 years old	Ref
Ages 6–11 years old	3.64	0.45–29.67	0.229
Ages 12–15 years old	2.22	0.26–18.68	0.462
Ages >15 years old	5.24	0.64–42.97	0.123
Positive margins	2.24	1.04–4.79	0.039
Posterior rib tumor	0.64	0.29–1.41	0.268
1 rib resected	2.44	0.25–23.86	0.444
2 ribs resected	2.73	0.27–27.19	0.392
≥ 3 ribs resected	1.71	0.16–17.73	0.653