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Table 4 Intra-examiner and inter-examiner reliability of lateral cephalometric radiograph measurements

From: Craniofacial features as assessed by lateral cephalometric measurements in children with Down syndrome

Group Variable Intra-examiner reliability: ICC Inter-examiner reliability: ICC
Maxilla/midface SNA 0.94 0.75
ANS-PNS (mm) 0.98 0.37
Co-ANS (mm) 0.99 0.93
N/S^ANS/PNS palatal plane angle (°) 0.93 0.49
Ba-S-N (°) 0.97 0.59
S-N anterior cranial base (mm) 0.98 0.98
S-Ba posterior cranial base (mm) 0.99 0.95
Ba-A (mm) 0.99 0.95
Ba-N-A (°) 0.93 0.81
FH^N/A maxillary depth (°) 0.86 0.68
PNS-Ba (mm) 0.97 0.27
A-N true vertical (mm) 0.90 0.87
OP^FH (°) 0.94 0.66
OP^SN (°) 0.97 0.68
Mandible SNB 0.98 0.76
Ba-B (mm) 1.00 0.95
Ba-N-B (°) 0.98 0.82
FH-N-Po facial angle/mandibular depth angle (°) 0.91 0.78
Co-Go-Gn gonial angle (°) 0.93 0.83
Co-Go (mm) 0.84 0.70
S-Go (mm) 0.94 0.88
Co-Pog (mm) 0.99 0.97
S/N^Go/Gn (°) 0.97 0.88
B-N true vertical (mm) 0.94 0.83
Pg-N true vertical (mm) 0.95 0.87
Y-axis length (mm) 0.99 0.98
Y-axis angle (°) 0.99 0.79
Inter-maxillary relationship ANB 0.96 0.90
Wits appraisal (mm) 0.95 0.70
Co-Pog-Co-ANS 0.99 0.45
Facial height TFH (N-Me) (mm) 1.00 0.98
UFH (N-ANS) (mm) 0.99 0.93
LFH (ANS-Me) (mm) 1.00 0.98
LFH/TFH (%) 0.99 0.77
PFH (S-Go) (mm) 0.92 0.82
AFH (N-Pg) (mm) 1.00 0.98
PFH/AFH (%) 0.92 0.85
Hyoid MP-H (mm) 0.99 0.97
H-Rg (mm) 1.00 0.90
H-C3 (mm) 0.99 0.93
H-C3-Rg (mm) 0.99 0.99
H-Me-Go/Me (°) 0.99 0.94
H-S (mm) 1.00 0.98
C2 - H FH perp (mm) 0.97 0.97
C2 - H || FH (mm) 1.00 0.95
C3 - H FH perp (mm) 0.96 0.96
C3 - H || FH (mm) 1.00 0.94
C4 - H FH perp (mm) 0.92 0.80
C4 - H || FH (mm) 0.99 0.88
Airway Nasopharynx airway at A point level (mm) 0.93 0.60
Oral pharyngeal airway space at Mx1 level (mm) 0.99 0.11
Hypopharynx airway space at B point level (mm) 0.99 0.03
Deep pharynx airway at Pog level (mm) 0.99 0.10
Palate AGSP-PNS (palate length) (mm) 0.97 0.34
ANS/PNS^Me/Go (angle of palate to MP) (°) 0.95 0.84
SPS-SPI (max soft palate thickness) (mm) 0.94 0.57
Arnett/Mc modified for OSA Upper incisor inclination (Mx1-MxOP) (°) 0.86 0.49
Upper incisor tip projection (Mx1-Sn) (mm) 0.95 0.86
Lower incisor inclination (Md1-MdOP) (°) 0.94 0.76
Lower incisor tip projection (Md1-Sn) (mm) 0.96 0.85
Overjet (mm) 0.91 0.56
Overbite (mm) 0.79 0.04
Maxillary anterior height (mm) 0.89 0.65
Sub-Gl (mm) −0.07 −0.22
STA-TVL (A') (mm) 0.87 0.21
STB-TVL (B') (mm) 0.95 0.80
STP-TVL (mm) 0.96 0.84
STP-THR (mm) 0.85 0.21