Correlation between apnea-hypopnea index (AHI) and parameters of the hyoid bone.

<p><b>A</b>. GH-d is inversely correlated to the AHI (r = −0.255, P = 0.008). <b>B</b>. AP is inversely correlated to the AHI (r = −0.232, P = 0.017). C. LH-d has no correlation with the AHI (r = −0.189, P = 0.052). D. H-angle has no correlation with the AHI (r = −0.117, P = 0.233).