Table 2.

Situs distribution by ciliary ultrastructural group

Ciliary Ultrastructure	SS (n = 286)	SIT (n = 215)	SA (n = 58)
ODA defect (n = 242)	96 (39.7)	113 (46.7)	33 (13.6)
ODA/IDA defect (n = 96)	40 (41.7)	43 (44.8)	13 (13.5)
IDA/MTD defect (n = 96)	52 (54.2)	36 (37.5)	8 (8.3)
Normal ultrastructure associated with DNAH11 (n = 43)	19 (44.2)	20 (46.5)	4 (9.3)
Normal/near-normal/other (n = 82)	79 (96.3)	3 (3.7)	0

Definition of abbreviations: DNAH11 = dynein axonemal heavy chain 11; IDA = inner dynein arm; MTD = microtubular disorganization; ODA = outer dynein arm; SA = situs ambiguus; SIT = situs inversus totalis; SS = situs solitus.

Data are presented as n (%).