Table 2. Differences between left and right side of each measures in all subjects, with the p-value of the difference.

DIAMETERS	Section	Mean	SD	p-value*
D1	U	1.10	5.0	<.0001
	M	1.13	4.3	<.0001
	L	2.12	4.6	<.0001
D2	U	−0.02	12.7	0.967
	M	0.00	13.4	0.998
	L	−4.01	16.0	<.0001
D3	U	−0.83	7.6	<.0001
	M	−0.16	8.6	0.587
	L	−1.72	13.7	<.0001
D4	U	−1.55	7.2	<.0001
	M	−0.38	7.3	0.139
	L	−0.75	8.9	0.017
D5	U	−2.65	9.7	<.0001
	M	−1.29	5.4	<.0001
	L	0.67	6.3	0.003

Notes: SD = standard deviation;

^*p-value was estimated by paired t-test.