Complex Segregation Analysis Provides Evidence for Autosomal Dominant Transmission in the Chinese Han Families with Ankylosing Spondylitis

Table 1

Distribution of relationship types in the study sample.

	All	Patients/concord affected pairs
Total	315	74
Male	169	43
Female	146	31
Parent-offspring	443	65
Sib-sib	317	73
Sister-sister	101	12
Brother-brother	74	32
Sister-brother	142	32
Grandparental	340	13
Avuncular	840	38
Cousin	811	54