Clinical efficacy and mechanism study of mid-frequency anti-snoring device in treating moderate obstructive sleep apnea-hypopnea syndrome

Table 1 Baseline characteristics of the study participants

Variable	Data
Male/female	35/15
Age in yr	38.5 ± 6.8
Height in cm	170.3 ± 10.8
Weight in kg	89.7 ± 15.6
BMI in kg/m2	29.5 ± 3.4
Systolic blood pressure in mmHg	122.3 ± 11.4
Diastolic blood pressure in mmHg	71.6 ± 10.2

Data are mean ± SD or n/N. BMI: Body mass index.