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Table 2 Body measurements, ESS results between responders and non-responders before treatment

From: Efficacy and mechanism of mandibular advancement devices for persistent sleep apnea after surgery: a prospective study

Parameters Responders Non-responders P value
BMI(kg/m2) 27.9 ± 3.3 28.5 ± 3.3 0.709
Neck circumference (cm) 41.6 ± 1.9 40.0 ± 3.2 0.199
Waist circumference (cm) 100.6 ± 7.4 99.7 ± 8.8 0.804
Hip circumference (cm) 104.0 ± 6.9 104.5 ± 6.2 0.860
Waist-to-hip ratio 1.0 ± 0.1 1.0 ± 0.1 0.578
ESS 7.4 ± 6.1 9.9 ± 6.4 0.401
AHI (/h) 41.2 ± 13.1 47.6 ± 24.8 0.487
LSaO2 (%) 78.1 ± 8.9 76.2 ± 6.1 0.604
  1. Abbreviations: BMI average body mass index, ESS Epworth sleepiness scale, AHI apnea hypopnea index, LSaO2 lowest oxygen saturation