Table 4.

Intergroup Treatment Change Comparisons (Analysis of Covariance)

Variable	Group HH, Mean Changes (SD)	Group CH, Mean Changes (SD)	Difference, Mean	95% CI, Lower, Upper	P Value*
Transversal distances (mm)
Nasal cavity width	2.26 (1.17)	1.11 (0.95)	1.15	0.40, 1.99	.004*
Palatal root distance width	3.52 (1.04)	2.83 (1.34)	0.69	−0.47, 1.48	.301
Maxillary width	1.82 (1.47)	0.99 (0.84)	0.83	0.04, 1.89	.041*
Palatal alveolar crest width	3.67 (1.26)	3.02 (1.24)	0.65	−0.15, 1.81	.097
Buccal alveolar crest width	3.22 (1.55)	2.03 (1023)	1.19	0.19, 2.47	.023*
Arch width	2.89 (1.40)	2.67 (1.22)	0.22	−0.52, 1.47	.335
Premolar inclination	1.81 (9.80)	9.79 (11.21)	−7.98	−10.82, 2.41	.200
Molar inclination	2.86 (14.16)	7.08 (11.00)	−4.22	−6.12, 7.59	.827
Dental model analysis (mm)
6-6 width	3.5 (1.24)	3.47 (1.21)	0.03	−0.75, 1.23	.624
5-5 width	3.18 (2.12)	4.23 (1.23)	−1.05	−2.19, 0.78	.338
4-4 width	2.62 (1.76)	4.07 (1.19)	−1.45	−1.99, 0.44	.201
3-3 width	0.94 (1.12)	0.54 (1.55)	0.4	−0.85, 2.20	.356
Arch length	−1.94 (1.36)	−2.2 (1.68)	0.26	−0.60, 1.66	.347
Arch perimeter	0.11 (2.31)	−0.51 (1.70)	0.62	−0.58, 2.71	.195
Arch size
Maxillary arch size	3.62 (2.48)	3.30 (1.92)	0.32	-1.01, 2.12	0.474

^*Statistically significant at P < .05.