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Table 4 Descriptive statistics and the comparing between the two groups regarding to the baseline measurements

From: Three-dimensional oropharyngeal airway changes after facemask therapy using low-dose computed tomography: a clinical trial with a retrospectively collected control group

Variable Control group (N = 16) Facemask group (N = 18) Mean difference p-value 95% Confidence interval of the difference
Mean SD Mean SD Lower Upper
SNA° 78.02 2.04 78.31 1.70 −0.30 0.654 −1.02 1.6
SNB° 79.22 2.02 79.95 1.42 −0.73 0.231 −0.49 1.94
ANB° −1.21 0.81 −1.64 0.89 0.44 0.146 −1.03 0.16
SN-POG° 80.97 2.02 81.69 1.42 0.72 0.231 −0.48 1.94
SN-GOME° 33.51 4.16 31.28 3.84 2.23 0.115 −5.02 0.57
Jarabak Ratio 66.95 4.32 65.26 3.22 1.69 0.959 −4.32 0.21
Total oropharyngeal airway volume (mm3) 7563.34 2012.41 8308.13 2533.60 −744.79 0.345 −2357.31 867.74
Retropalatal airway volume (mm3) 4308.51 1273.48 4767.68 1349.69 −459.17 0.317 −1287.19 604.96
Retroglossal airway volume (mm3) 3254.83 930.24 3540.45 1360.66 −285.62 0.408 −1110.52 539.28
minimal cross-sectional area (mm2) 163.08 43.53 149.57 27.95 13.51 0.486 −11.75 38.78
  1. Student’s t -test