The cephalometric variables that differ between affected and unaffected individuals.

<p>Footnotes:</p><p>*, cephalometric standards of China.</p><p>ANB, anteroposterior relationship of the maxilla and mandible.</p><p>SNA, anteroposterior maxillary position to anterior cranial plane.</p><p>SNB, anteroposterior mandibular position to anterior cranial plane.</p><p>Wits (mm), length of AO-BO distance.</p><p>ANS-Ptm (mm), maxillary unit length.</p><p>Co-Po (mm), mandibular unit length.