Table 4.

Paired t-test between the left and right arms.

	Artery depth	Artery diameter	Average blood flow velocity	Maximum blood flow velocity
L_Cun-R_Cun	0.004**	0.329	0.008**	0.000**
L_Guan-R_Guan	0.987	0.224	0.001**	0.000**
L_Chi-R_Chi	0.740	0.049*	0.003**	0.000**
L_P1-R_P1	0.169	0.852	0.005**	0.000**
L_P2-R_P2	0.000**	0.253	0.011*	0.000**
L_P3-R_P3	0.000**	0.299	0.001*	0.017*

L: left, R: right, ^* P < .05, and ^** P < .01.