Table 1.

Subject demographics

Group Subject Characteristics
Subjects, no.	15
Female/male, no.	5/10
Age, yr	32.9 ± 3.1
Height, cm	172.7 ± 1.9
Weight, kg	68.8 ± 4.0
Body mass index, kg/m2	23.8 ± 0.7
Units per subject, no. (range)	6.3 ± 1.3 (1–19)
Inferior margin of geniohyoid muscle, mm	12.4 ± 0.9
Inferior margin of genioglossus muscle, mm	20.7 ± 1.0
Genioglossus width, mm	15.4 ± 0.5

Values are means ± SE, unless otherwise specified. Shown are the number of subjects, female-to-male ratio, age, height, weight, body mass index, number of units, and ultrasound measurements of the upper airway. Ultrasound measurements from the skin to the inferior margin of the geniohyoid and genioglossus muscles and the mean width genioglossus are also given.