Table 2.

Age of affected children and age of parents.

	N	Minimum	Maximum	Mean	SD
Age	220	1	18	7.95	3.69
Number of sisters	196	0	9	1.49	1.45
Number of brothers	196	0	9	1.63	1.55
Patient’s order to other siblings	196	0	11	3.08	2.21
Father’s age when the child was born	178	22.0	85.0	37.31	8.67
Mother’s age when the child was born	175	18.0	60.0	31.95	6.93