Table 1. Means and standard deviations of the divergence angle measured five times by the first observer and intra-observer reproducibility.

DA, divergence angle; ICC, intra-class correlation coefficient.

Measures n = 40	DA in ° (mean ± standard deviation)					Intra-observer reproducibility
	Measure 1	Measure 2	Measure 3	Measure 4	Measure 5	Pearson	p-Value	ICC	p-Value
	6 ± 4.4	6.4 ± 4.4	6.1 ± 4.8	6.2 ± 4.8	5.9 ± 4.5	>0.9 (strong)	<0.001	>0.9 (excellent)	<0.001