Table 3.

Carrier status by FA family complementation group and cancer history of grandparent

Frequency		Carrier (n = 298)	Noncarrier (n = 297)	Unknown carrier status (n = 189)	Total
Group	A	185	192	34	411
	B	0	0	6	6
	BRCA2	9	7	10	26
	C	54	48	6	108
	D2	9	8	9	26
	E	0	0	3	3
	F	11	12	0	23
	G	25	24	0	49
	J	5	6	0	11
	Nx	0	0	32	32
	U	0	0	84	84
Cancer	No	232	247	154	633
History	Yes	66	50	35	151

Abbreviations: U, unknown group; Nx, unknown group for whom groups FA-A/B/C/D1/D2/E/F/G/J/L/M have been excluded by mutation or complementation studies.