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Table 2 The mean (standard deviation) of each mandibular morphometric parameter for randomized head positions, as well as the intra-rater and inter-rater reliability in terms of intra-class correlation coefficients (ICC) and coefficient of variation (CV) for the senior and junior examiner

From: Test–retest reliability of mandibular morphology measurements on cone-beam computed tomography-synthesized cephalograms with random head positioning errors

  Senior Junior Inter-rater
Mean ICC1 CV Mean ICC1 CV ICC2 p value
(SD) (SD)
Cd-Gn 106.97 (4.88) 1.00 0.05 104.43 (5.28) 0.98 0.05 0.93 0.000*
Cd-B 95.05 (3.64) 0.99 0.04 93.64 (3.71) 0.96 0.04 0.94 0.000*
Cd-Li 89.46 (4.16) 0.99 0.05 87.65 (3.82) 0.95 0.04 0.92 0.000*
Go-Pog 69.59 (4.42) 0.98 0.06 69.47 (4.77) 0.94 0.07 0.96 0.571
Cd-Go 57.36 (4.15) 0.98 0.07 57.96 (3.87) 0.91 0.07 0.95 0.119
Go-Gn 68.55 (4.34) 0.98 0.06 66.88 (4.92) 0.94 0.07 0.89 0.000*
CdP-GoP 38.02 (3.33) 0.92 0.09 41.00 (3.44) 0.78 0.08 0.60 0.000*
Me-GoA 58.14 (4.53) 0.97 0.08 54.38 (5.55) 0.90 0.10 0.70 0.000*
Cd-CP 33.38 (2.80) 0.98 0.08 32.91 (2.92) 0.94 0.09 0.96 0.074
Li-Me 37.53 (4.74) 0.99 0.13 36.79 (4.68) 0.98 0.13 0.99 0.000*
Cd-GO-Gn 116.41 (6.54) 0.99 0.06 113.68 (6.38) 0.96 0.06 0.93 0.000*
GO-Gn-Li 79.51 (8.02) 0.99 0.10 81.31 (8.72) 0.97 0.11 0.96 0.002*
  1. The p values with an asterisk (*) calculated from the paired t test indicate that the differences in the measurement between examiners is less than 0.05
  2. ICC 1 Intra-rater correlation coefficient, ICC 2 Inter-rater correlation coefficient
  3. p value: p values of the paired-sample t test of the measurements between senior and junior
  4. * Significant difference in the measurement between examiners