Table 1. Distribution of the families by the number of affected individuals in each family.

# affected	# families	%	# sequence variants	%
28	1	0.23	1	1.67
20	2	0.46	2	3.33
19	1	0.23	0	0.00
17	1	0.23	2	3.33
16	1	0.23	0	0.00
15	1	0.23	0	0.00
14	1	0.23	0	0.00
13	5	1.14	1	1.67
12	3	0.68	0	0.00
11	4	0.91	0	0.00
10	13	2.96	2	3.33
9	14	3.19	2	3.33
8	27	6.15	5	8.33
7	32	7.29	6	10.00
6	54	12.30	5	8.33
5	107	24.37	9	15.00
4	172	39.18	25	41.67
TOTAL	439		60

The number of families with different numbers of affected individuals is shown. More than 50% of the families have 4 or 5 affected individuals. The number of sequence variants found in each group is also shown.