Table 3. Correlation between gender, age, BMI and epiglottic obstruction in DISE (n=270)

Variable	Level	Epiglottic obstruction (n (%))			χ2/F-value	p-value
		0 (n=166)	1 (n=35)	2 (n=70)
Sex	Male (%)	142 (61.2)	29 (12.5)	61 (26.3)	.36	.835
	Female (%)	23 (60.5)	6 (15.8)	9 (23.7)
Age±S.D. (yr)		42.90±12.38	44.06±11.85	42.11±12.54	.29	.747
BMI±S.D. (kg/m2)		26.21±3.52	26.46±4.18	26.87±3.95	.78	.461
<25		72 (64.9)	15 (13.5)	24 (21.6)	2.66	.617
25–30		71 (60.2)	13 (11.0)	34 (28.8)
≥30		23 (54.8)	7 (16.7)	12 (28.6)

Data are presented as n (%) or mean±S.D.
BMI: body mass index, DISE: drug-induced sleep endoscopy.