Skeletal Plasmacytoma: Progression of disease and impact of local treatment; an analysis of SEER database

Table 3 Cox proportional hazards model for risk of death from Ewing's Sarcoma

		n	Hazard ratio	95% CI	p-value
Age
	0-29	13	0.075	0.011-0.537	0.01
	30-59	401	0.277	0.220-0.349	<0.001
	>60	726		Reference Group
Gender
	Male	710	0.918	0.764-1.103	0.362
	Female	430		Reference Group
Race
	White	957	1.893	1.037-3.455	0.038
	Black	134	2.080	1.086-3.985	0.027
	Other	49		Reference Group
Lesions
	Single	939	0.851	0.523-1.387	0.518
	Two	177	0.85	0.504-1.434	0.542
	> Two	24		Reference Group
Radiation
	Yes	925	0.647	0.521-0.804	<0.001
	No	215		Reference Group

ISSN: 1756-8722