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Table 1 Body measurement data and ESS and PSG parameters before and after MAD treatment

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

Parameters Before MAD After MAD P value
BMI (kg/m2) 28.2 ± 3.2 26.9 ± 7.0 0.373
ESS 8.6 ± 6.2 6.1 ± 6.1 0.025
(S3 + S4)% 12.9 ± 6.5 14.3 ± 8.7 0.459
AHI (/h) 44.2 ± 19.2 28.2 ± 24.6 0.005
LSaO2 (%) 77.2 ± 7.6 79.3 ± 10.4 0.327
  1. Abbreviations: BMI average body mass index, ESS epworth sleepiness scale, (S3 + S4)% the percentage of stage 3 and stage 4 sleep (deep sleep) in the total sleep time, AHI apnea hypopnea index, LSaO2 lowest oxygen saturation
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