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Table 1 The baseline demographic information and cephalometric analysis of included patients

From: Oropharynx and hyoid bone changes in female extraction patients with distinct sagittal and vertical skeletal patterns: a retrospective study

  Extraction group (n = 120) Non-extraction group (n = 40)
Mean (SD)
Class I-norm (n = 30)
Mean (SD)
Class I-hyper (n = 30)
Mean (SD)
Class II-norm (n = 30)
Mean (SD)
Class II-hyper (n = 30)
Mean (SD)
Demographic
 Age, years 24.8 (3.6) 24.3 (4.1) 26.1 (2.9) 25.1 (3.2) 26.4 (4.9)
 BMI, kg/m2 21.2 (1.2) 22.4 (2.1) 20.8 (1.8) 21.1 (1.8) 22.1 (2.4)
 Treatment duration, years 2.6 (0.6) 2.5 (0.4) 2.7 (0.3) 2.7 (0.4) 2.0 (0.3)
Cephalometric analysis
 SNA 82.3 (1.6) 81.5 (1.3) 81.1 (2.2) 83.2 (2.1) 82.1 (3.2)
 SNB 79.4 (2.4) 78.1 (2.3) 74.8 (2.7) 75.2 (3.2) 76.9 (2.2)
 ANB 2.9 (1.2) 3.4 (1.1) 5.9 (1.8) 6.7 (1.9) 5.2 (1.7)
 SN-MP 32.3 (3.0) 43.2 (3.1) 34.1 (2.1) 41.9 (2.4) 37.2 (3.8)
 U1-SN 115.7 (4.2) 112.2 (3.9) 106.2 (5.2) 104.2 (4.4) 101.2 (6.3)
 L1-MP 97.6 (5.6) 98.3 (6.2) 99.4 (4.2) 102.1 (6.8) 94.2 (7.9)
 U1-X, mm 63.9 (3.5) 64.7 (4.2) 64.1 (3.9) 65.2 (2.9) 62.8 (3.8)
 L1-X, mm 61.4 (4.3) 61.7 (5.1) 60.2 (6.0) 61.3 (4.7) 61.2 (2.7)