Table 1.

Descriptive statistics on the 426 male subjects

Clinical variables	Mean	SD	Range
AHI	22.5	18.1	0.0–102.0
Weight (kg)	91.7	17.3	61.0–162.0
Height (cm)	175.3	7.1	152.0–197.0
BMI (kg/m2)	29.8	5.1	20.1–52.1
Age (years)	48.8	12.5	20.0–85.0
Cervical perimeter (cm)	42.2	3.2	34.0–53.0

AHI apnea–hypopnea index, BMI body mass index, SD standard deviation