Table 1.

Oral and general findings of patients among high and no risk OSA groups.

Variables	No risk OSA	High risk OSA	X2 value	p value
BMI <35kg/m2	124	114	4.966	0.026*
BMI >35kg/m2	6	16
Neck circumference <40cm	115	77	28.75	0.000*
Neck circumference >40cm	15	53
Dental attrition absent	72	55	4.449	0.035*
Dental attrition present	58	75
TMD absent	106	90	5.306	0.021*
TMD present	24	40
Angle's Class 1 or Class 3 malocclusion	125	117	3.82	0.051
Angle's Class 2 malocclusion	5	13
Narrow maxillary arch absent	106	85	8.700	0.003*
Narrow maxillary arch present	24	45
Straight or Concave facial profile	125	115	5.41	0.02*
Convex facial profile	5	15
Class 1 or Class 2 Mallampati score	110	47	63.81	0.000*
Class 3 or Class 4 Mallampati score	20	83
Large tongue absent	108	44	64.87	0.000*
Large tongue present	22	86
Shallow or moderate palatal vault	97	57	25.48	0.000*
Deep palatal vault	33	73
Periodontitis absent	96	83	3.031	0.82
Periodontitis present	34	47

BMI=body mass index; OSA=obstructive sleep apnea; TMD= temporomandibular disorder

^*significance at p<0.05, X2 =chi-squared test value.