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Table 1 Changes in the total pharyngeal airway volume after isolated mandibular setback surgery for mandibular prognathism

From: Why most patients do not exhibit obstructive sleep apnea after mandibular setback surgery?

Ref.nAge (years, mean ± SD, range)BMISurgeryFollow-upTotal pharyngeal airway volume (cm3)
T0aT1T2T3
Park JW (2010) [17]1225.5 MnSPre and post 6 mo17.6 (100.0%) 16.1 (91.3%) 
Hong JS (2011) [15]1223.2 ± 3.6 MnS (no skeletal movement information)Pre and post 2 mo8.5 (100.0%)6.9 (80.9%)  
Park SB (2012) [18]20Total 23.0 ± 3.0 (19–29) MnS (setback 7.9 ± 3.6 mm)Pre and post 5 mo and post 17 mo36.6 (100.0%) 32.4 (88.5%)32.1 (87.7%)
Hatab (2015) [14]9Total 21.8 ± 3.4 (18–30) MnS (no skeletal movement information)Pre and post 3 mo30 (100.0%)22.5 (75.2%)  
Shah (2016) [19]2923.7 ± 6.3 (18–52) MnS (setback 7.7 mm)Pre and post 6 mo and 1 year35.5 (100.0%) 24.4 (68.7%)25.1 (70.7%)
Lee ST (2019) [16]2523.0 ± 4.422.4 ± 3.5MnS (setback 9.1 ± 2.6 mm)Pre and post 1 mo and 1 year26 (100.0%)19.6 (75.4%) 22.1 (85.0%)
Total     (100.0%)(77.1%)(82.9%)(81.1%)
  1. MnS mandibular setback surgery (amount of setback), Pre preoperative, Post postoperative, mo, months
  2. aThe preoperative state (T0) was set as 100%. T0, preoperative; T1, postoperative 1–4 months; T2, postoperative 5–6 months; T3, postoperative 1 year. The total age indicates that the study did not define the value for individual study groups