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Table 1 Descriptive statistics of the patients sample (mean, SD, minimum, maximum)

From: Facial soft tissue response to maxillo-mandibular advancement in obstructive sleep apnea syndrome patients

  Descriptive Statistics
N Mean SD Minimum Maximum
T0 Gb 37 −6.811 3.2900 −15.0 −2.0
NT 37 17.216 2.0835 11.0 21.0
Sn 37 0.000 0.0000 0.0 0.0
ULa 37 1.432 2.2304 −2.0 6.0
Mx1 37 −12.865 7.2156 −20.0 25.0
Mn1 37 −5.459 2.9401 −11.0 0.0
LLa 37 −19.784 3.7575 −26.0 −13.0
B′ 37 −18.054 4.0411 −26.0 −6.0
Pog’ 37 −17.784 5.5183 −30.0 −4.0
T1 Gb 37 −10.000 3.4721 −20.0 −5.0
NT 37 13.324 1.9868 8.0 18.0
Sn 37 0.000 0.0000 0.0 0.0
ULa 37 2.378 2.9660 −4.0 9.0
Mx1 37 −17.216 3.2586 −25.0 −9.0
Mn1 37 −3.703 2.7169 −10.0 2.0
LLa 37 −19.946 3.4637 −29.0 −11.0
B′ 37 −11.216 3.7129 −20.0 0.0
Pog’ 37 −9.622 4.2645 −18.0 3.0
T2 Gb 37 −8.324 4.2495 −22.0 −1.0
NT 37 15.243 2.0194 10.0 20.0
Sn 37 0.000 0.0000 0.0 0.0
ULa 37 1.649 2.7408 −4.0 6.0
Mx1 37 −12.297 4.7950 −20.0 9.0
Mn1 37 −2.757 3.2094 −10.0 4.0
LLa 37 −15.595 3.1838 −22.0 −7.0
B′ 37 −9.000 4.2426 −18.0 −1.0
Pog’ 37 −5.865 4.5532 −17.0 3.0
  1. Mean, standard deviation, minimum and maximum values in millimeters of the measurements for T0 (presurgical), T1 (1–6 months postsurgery) and T2 (6 months to 5 years after surgery) between the cephalometric points and the TVL
  2. Abbreviations: Gb Glabella, NT Nasal Tip, Sn Subnasale, ULa Upper Lip Anterior, Mx1 Upper Central Incisor Edge, LLa Lower Lip anterior, Mn1 Lower Central Incisor Edge, B′ Soft Tissue B-Point, Pog’ Pogonion Molle