Table 5 Multiple linear regression of relationships between pretreatment-to-posttreatment changes in dentoskeletal, soft tissue, and hyoid bone variables and pharyngeal airway dimensions.

Variables		ΔAirway1	ΔAirway2	ΔAirway3	ΔAirway4	ΔAirway5	ΔAirway6
ΔSNA	β	4.57	6.68	3.70	0.43	−3.61	−4.88
ΔSNA	p	0.349	0.162	0.487	0.927	0.537	0.341
ΔSNB	β	−5.53	−3.52	−2.51	−3.85	0.64	2.49
ΔSNB	p	0.257	0.457	0.636	0.417	0.912	0.625
ΔANB	β	−2.29	−4.29	0.37	-0.39	1.70	0.37
ΔANB	p	0.597	0.313	0.938	0.927	0.744	0.935
ΔSN-MP	β	0.18	0.13	0.09	0.00	0.25	−0.23
ΔSN-MP	p	0.404	0.537	0.709	0.989	0.326	0.303
ΔHead angulation	β	0.02	0.09	0.08	0.22	0.41	0.27
ΔHead angulation	p	0.853	0.322	0.439	0.020*	0.000**	0.007*
ΔU1-Y	β	−0.29	−0.24	−0.27	−0.36	−0.31	−0.09
ΔU1-Y	p	0.123	0.185	0.187	0.054	0.177	0.647
ΔL1-Y	β	0.02	0.01	0.00	−0.10	0.14	−0.10
ΔL1-Y	p	0.924	0.97	0.998	0.628	0.575	0.632
ΔUvula length	β	0.09	0.13	−0.45	−0.52	−0.47	−0.15
ΔUvula length	p	0.58	0.411	0.011*	0.001*	0.015*	0.374
ΔUvula angulation	β	0.02	0.08	−0.04	−0.29	−0.15	−0.10
ΔUvula angulation	p	0.786	0.315	0.659	0.000**	0.103	0.218
ΔH-RGN	β	0.10	0.11	0.22	0.25	−0.06	−0.02
ΔH-RGN	p	0.416	0.369	0.117	0.044*	0.669	0.909
ΔH-C3	β	0.08	−0.09	−0.06	0.08	0.10	0.31
ΔH-C3	p	0.539	0.472	0.691	0.517	0.528	0.027*
ΔH-MP	β	−0.29	−0.18	−0.25	-0.33	−0.03	−0.02
ΔH-MP	p	0.145	0.344	0.253	0.086	0.897	0.919
ΔH-S	β	0.20	0.17	0.22	0.30	0.13	−0.02
ΔH-S	p	0.202	0.256	0.195	0.053	0.496	0.890

β, beta coefficient, indicates positive or negative correlations between variables of interest.
*p < 0.05, **p < 0.001.
∆ indicates pretreatment-to-posttreatment changes in variables of interest.

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