Table 4.

Characteristics, treatments and responses for patients included in this study.

Summary of tumor characteristics, treatment and responses
	Primary Site			Metastatic Sites				Treatment			Response
	Carotid Body	Jugulo-tympanic	Other	Liver	Lung	Bone	Other	Radiation	Chemotherapy	Both	Progression	Stable	Regression
By Gender
Men	1 (17%)	4 (67%)	1 (17%)	1 (17%)	-	6 (100%)	3 (50%)	5 (83%)	4 (67%)	4 (67%)	5 (83%)	1 (17%)	-
Women	9 (69%)	2 (15%)	2 (15%)	4 (31%)	7 (54%)	7 (54%)	9 (69%)	9 (69%)	7 (54%)	6 (46%)	5 (38%)	4 (31%)	1 (8%)
By Age at Presentation
> 40	3 (33%)	3 (33%)	3 (33%)	2 (22%)	4 (44%)	6 (67%)	6 (67%)	7 (78%)	5 (56%)	5 (56%)	7 (78%)	1 (11%)	-
< = 40	7 (70%)	3 (30%)	-	3 (33%)	3 (33%)	7 (78%)	6 (60%)	7 (70%)	6 (60%)	5 (50%)	3 (30%)	4 (40%)	1 (10%)
By Primary Site
Carotid Body	10	-	-	3 (30%)	5 (50%)	6 (60%)	8 (80%)	-	-	-	3 (30%)	3 (30%)	1 (10%)
Jugulotympanic	-	6	-	2 (33%)	1 (17%)	5 (83%)	3 (50%)	-	-	-	5 (83%)	1 (17%)	-
Other	-	-	3	-	1 (33%)	2 (67%)	1 (33%)	-	-	-	2 (67%)	1 (33%)	-
By Treatment
Radiation	7 (70%)	6 (100%)	1 (33%)	-	-	-	-	14	-	-	12 (92%)	1 (8%)	0 (0%)
Chemotherapy	7 (70%)	3 (50%)	1 (33%)	-	-	-	-	-	11	-	6 (55%)	2 (18%)	1 (9%)
Both	6 (60%)	3 (50%)	1 (33%)	-	-	-	-	-	-	10	6 (60%)	2 (20%)	1 (10%)