Table 2.

Range of measurements per distance (mm) and intra-class correlation coefficient with 95% confidence interval.

Measured distance	Median (range)	Consistency type		Absolute agreement type
		ICC	95% CI	ICC	95% CI
LC to marker	148.0 (130–169)	0.90	[0.80, 0.96]	0.87	[0.76, 0.93]
TT to marker	89.0 (75–100)	0.83	[0.69, 0.93]	0.74	[0.55, 0.88]
MA marker	92.0 (65–111)	0.75	[0.56, 0.89]	0.65	[0.44, 0.83]
AM to marker	135.0 (113–158)	0.29	[0.05, 0.59]	0.26	[0.04, 0.55]
LC to TT	84.5 (73–92)	0.50	[0.25, 0.74]	0.47	[0.24, 0.71]

LC, lateral canthus; TT, tragus tip; MA, mastoid angle; AM, mandibular angle; SD, standard deviation; ICC, intra-class correlation coefficient; CI, confidence interval.