Table 3.

Comparison between prediction error of model and inter-observer variation (unit: mm)

Region	Prediction error of the model		Inter-observer variation		Mean difference	p-value
	Mean	Std	Mean	Std
R-ZR	1.74	0.82	2.09	1.23	-0.35	＞0.05
L-ZR	2.02	0.98	1.98	0.87	0.04	＞0.05
FR	1.58	0.77	1.50	0.90	0.08	＞0.05
NR	1.93	0.96	1.69	0.78	0.24	＞0.05
TR	1.74	0.88	0.71	0.53	1.03	<0.05
MER	2.23	1.09	2.26	0.94	-0.03	＞0.05
R-MAR	1.90	0.96	1.99	0.87	-0.09	＞0.05
L-MAR	1.97	0.89	2.28	0.86	-0.31	＞0.05
SR	1.22	0.44	0.85	0.61	0.37	＞0.05