DNAH5 and primary ciliary dyskinesia: In terms of ciliary ultrastructural abnormalities, 165 (78.57%) of 210 DNAH5-mutated PCD patients exhibited ODA defects, 30 (14.29%) had ODA + IDA defects, and 7 (3.33%) presented with other ciliary structural abnormalities, including radial spoke, central pair and microtubular disorganization defects.