Skip to main content

Table 5 Cephalometric values of upper airway in Caucasian subjects and gender differences

From: Cephalometric norms for the upper airway of 12-year-old Chinese children

Variables   Boys Girls Gender difference P value
     Range 95% CI     Range 95% CI
  Mean SD Median Min Max Lower Upper Mean SD Median Min Max Lower Upper
Soft palate                 
PM-U Length of the soft palate 29.9 3.9 29.7 20.2 42.6 28.8 30.9 29.4 3.3 29.2 23.5 37.9 28.4 30.4 0.5 0.377
SPT Soft palate thickness 8.3 1.3 8.4 5.2 11.8 8.0 8.7 7.9 1.1 7.9 5.8 10.8 7.6 8.2 0.4 0.055
NL/PM-U Inclination of the long axis of the soft palate relative to the nasal line 124.6 6.3 125.0 111.0 140.0 123.0 126.2 126.8 6.8 125.0 113.0 147.0 124.8 128.8 -2.2 0.296
Depth of upper airway                 
PM-UPW Depth of the nasopharyngeal airway space 21.0 3.6 21.6 9.9 27.3 20.1 21.9 21.1 4.1 21.0 8.2 31.7 19.9 22.3 -0.1 1.000
U-MPW Depth of the retropalatal pharyngeal airway space 9.1 2.4 9.1 3.1 13.8 8.5 9.7 9.2 2.3 8.8 4.3 14.2 8.5 9.8 -0.1 0.889
V-LPW Depth of the hypopharyngeal airway space 13.1 2.5 13.5 8.0 19.7 12.5 13.8 13.1 3.4 13.6 7.4 21.0 12.2 14.1 0.0 0.973
PASmin Depth of the retroglossal pharyngeal airway space 7.5 2.8 7.4 2.8 13.8 6.8 8.2 7.9 2.8 7.3 4.1 14.7 7.1 8.7 -0.4 0.562
Position of the hyoid bone                 
AH-FH Positon of the hyoid bone in the vertical plance 73.1 5.4 72.8 62.6 84.2 71.7 74.4 72.8 5.2 72.2 60.1 85.9 71.3 74.3 0.3 0.633
AH-CV Positon of the hyoid bone in the horizontal plance 28.6 2.9 28.8 22.0 35.5 27.8 29.3 29.4 3.0 29.4 24.2 35.6 28.5 30.3 -0.8 0.208