Table 2.

Distribution of 126 Nuclear Families with Multiple Cases of Prostate Cancer, According to Family Structure and Phenotype

	No. of Instances of Father’s Phenotype
No. of Sons Affected/Unaffected	Affected	Unaffected	Unknown	Total
1/1	10	7	0	17
1/2	2	7	0	9
2/0	11	23	3	37
2/1	9	12	0	21
2/2	3	4	1	8
2/3	1	0	0	1
2/4	1	0	0	1
3/0	3	14	2	19
3/1	3	2	0	5
3/2	0	2	0	2
3/3	0	1	0	1
4/0	0	4	0	4
4/1	0	0	1	1
Total	43	76	7	126