Table 2.

Gender information for affected individuals in the 201 ankylosing spondylitis families

Number of affected men/women in a family	Number of families
Families with both affected men and women	94
1/1	60
2/1	17
3/1	1
1/2	8
2/2	3
3/2	1
1/3	2
2/3	2
Families with only affected men	74
1/0	5
2/0	54
3/0	12
4/0	2
5/0	1
Families with only affected women	33
0/1	2
0/2	26
0/3	4
0/4	1