Table 2 Mean (95% CI) and the confidence limits for Bland–Altman plots.

	Mean of differences	SE of differences	SD of differences	95% CI for mean differences, mean (1.96 SE)	Confidence limits for Bland–Altman plots, mean (2 SD)
Right horizontal–right vertical	−0.108	0.049	0.339	−0.204 (−0.012)	−0.786 (0.569)
Right horizontal–left horizontal	−0.177	0.049	0.351	−0.273 (−0.080)	−0.879 (0.526)
Right horizontal–left vertical	−0.177	0.065	0.451	−0.305 (−0.05)	−1.079 (0.725)
Right vertical–left horizontal	−0.087	0.063	0.421	−0.210 (0.036)	−0.929 (0.756)
Right vertical–left vertical	−0.040	0.054	0.365	−0.147 (0.067)	−0.770 (0.690)
Left vertical–left horizontal	−0.089	0.052	0.351	−0.192 (0.014)	−0.791 (0.613)