Table 1.

Demographic Characteristics of Counselees and Sample Size, by Center ^*

Center	Population	Persons Tested, n	Men, %	Mean Age (SD), y	Breast Cancer, n	Ovarian Cancer, n	No Cancer, n	BRCA1 Positive, n	BRCA2 Positive, n	Reference
BCM	Ashkenazi Jewish volunteers	282	0	53.1 (11.8)	33	2	247	6	0	25
City of Hope	Counseling clinic	77	0	49.8 (13.0)	47	5	25	13	5	26
Duke University	Counseling clinic	275	0	47.8 (10.7)	237	27	22	41	18	27
FHCRC	Population-based study	583	0	45.7 (5.1)	320	6	263	22	12	28
Georgetown University	Counseling clinic	242	0	52.9 (11.4)	227	20	3	55	23	21
HCI	Counseling clinic	61	0	58.5 (15.2)	47	2	12	6	8	-
JHU	Counseling clinic	105	3	50.2 (10.3)	57	7	43	0	6	29
Penn	Counseling clinic	676	69	50.9 (13.0)	489	82	138	121	53	11, 30
UTSW	Counseling clinic	121	7	47.9 (12.8)	67	10	50	23	9	24
UCI	Population-based study	803	9	62.5 (13.6)	605	122	87	10	4	31
MDACC	Counseling clinic	117	7	51.2 (13.3)	59	8	53	25	18	32
Total	-	3342	95	52.8 (13.1)	2188	291	943	332	156	-

^*BCM = Baylor College of Medicine; FHCRC = Fred Hutchinson Cancer Research Center; HCI = Huntsman Cancer Institute; JHU = Johns Hopkins University; MDACC = M.D. Anderson Cancer Center; Penn = University of Pennsylvania; UCI = University of California, Irvine (Orange County); UTSW = University of Texas Southwestern.