Table 4. P-values of multivariable analysis between demographic characteristics and Berlin questionnaire and cephalometric parameters

	수술 전, 후 Berlin category I 점수 변화량	수술 전, 후 Berlin category 2 점수 변화량	수술 전, 후 SNA 변화량	수술 전, 후 SNB 변화량	수술 전, 후 ANB 변화량
Age (y)	0.003*	0.009*	0.434	0.074	0.309
Tonsil grade	＜0.001*	0.006*	0.530	0.117	0.069
Weight	0.012*	0.028*	0.403	0.063	0.392
BMI	0.170	0.157	0.391	0.103	0.732
호흡증상 유무	＜0.001*	0.006*	0.790	0.231	0.623

p<0.05.
SNA: angle between sella, nasion and subspinal point A), SNB: angle between sella, nasion and supramental point B), ANB: angle between maxilla and the mandible.