Correlation between dental arch form and OSA severity in adult patients: an observational study

Progress in Orthodontics

Table 6 Spearman Rho test for correlation between females and OSA severity

	Palatal height	Upper inter-molar distance	Anterior width of upper arch	Posterior width of upper arch	Anterior width of lower arch	Posterior width of lower arch	Length of the upper arch	Length of the lower arch	ODI	AHI	Palatal area
Palatal height		− 0.638	0.521	− 0.702	0.278	− 0.733	0.432	0.503	− 0.232	− 0.366	0.351
Upper inter-molar distance	− 0.639		− 0.366	0.985	− 0.409	0.778	− 0.419	− 0.358	0.697	0.563	− 0.420
Anterior width of upper arch	0.521	− 0.366		− 0.403	0.173	− 0.195	0.220	0.312	0.128	− 0.121	0.556
Posterior width of upper arch	− 0.702	0.985	− 0.403		− 0.283	0.840	− 0.330	− 0.437	0.642	0.478	− 0.449
Anterior width of lower arch	0.278	− 0.409	0.173	− 0.283		− 0.035	0.888	0.006	− 0.368	− 0.632	0.193
Posterior width of lower arch	− 0.733	0.778	− 0.195	0.840	− 0.035		− 0.102	− 0.609	0.317	0.107	− 0.063
Length of the upper arch	0.432	− 0.419	0.220	− 0.330	0.888	− 0.102		0.270	− 0.489	− 0.767	0.166
Length of the lower arch	0.503	− 0.358	0.312	− 0.437	0.006	− 0.609	0.270		− 0.047	0.075	0.008
ODI	− 0.232	0.697	0.128	0.642	− 0.368	0.317	− 0.489	− 0.047		0.827	− 0.315
AHI	− 0.367	0.563	− 0.121	0.478	− 0.632	0.107	− 0.767	0.0745	0.827		− 0.281
Palatal Area	0.351	− 0.420	0.556	− 0.449	0.193	− 0.063	0.166	0.008	− 0.315	− 0.281

Palatal height		0.089	0.185	0.0524	0.505	0.039	0.285	0.204	0.581	0.373	0.394
Upper inter-molar distance	0.089		0.372	8.639	0.314	0.023	0.301	0.384	0.055	0.146	0.300
Anterior width of upper arch	0.185	0.372		0.322	0.683	0.644	0.601	0.451	0.762	0.775	0.1521
Posterior width of upper arch	0.052	8.639	0.322		0.497	0.009	0.424	0.279	0.086	0.231	0.2641
Anterior width of lower arch	0.505	0.314	0.683	0.497		0.935	0.003	0.989	0.370	0.093	0.646
Posterior width of lower arch	0.039	0.023	0.644	0.009	0.935		0.809	0.109	0.444	0.801	0.882
Length of the upper arch	0.285	0.3017	0.601	0.424	0.003	0.809		0.517	0.219	0.026	0.694
Length of the lower arch	0.204	0.384	0.451	0.279	0.989	0.109	0.517		0.912	0.861	0.986
ODI	0.581	0.055	0.762	0.086	0.370	0.444	0.219	0.911		0.0112	0.448
AHI	0.373	0.146	0.775	0.231	0.093	0.801	0.026	0.860	0.011		0.500
Palatal area	0.394	0.300	0.152	0.264	0.646	0.882	0.694	0.986	0.448	0.5003