Table 3

Breakdown of family history of women in the total study population and the screening programme

Family history	Total number	Number in screening group	Mean age at assessment	Breast cancers
BC, breast cancer; OC, ovarian cancer; FDR, first degree relative.
Categories are more extensive in this table than for the full analysis and we have excluded breast cancers occurring in distant relatives in categories a–d.
a. 1 FDR BC<40 only	510	302	35.49	9
b. 1 FDR BC 40+ only	728	401	38.58	16
c. 2 FDR BC<50 only	82	61	43.34	1
d. 2 FDR BC only not fulfilling c	127	81	45.72	3
e. 2 BC affected relatives not in c or d	755	485	37.74	7
f. 3 BC affected relatives	451	285	39.23	9
g. 4+ BC affected relatives	272	181	39.52	9
h. 1 OC+BC	154	98	39.67	4
i. 2 OC+BC	42	30	39.61	5
j. Any other history	29	9	39.07	1
Total	3150	1933		64