Table 6. Mean comparison between the left and right sides of the submental artery using the Wilcoxon signed-rank test.

SA: submental artery.

*Statistically significant difference present in the origin of the submental artery between the left and right sides (p-value, 0.039).

Parameter	Group 1		Group 2		Z value	p-value
	Mean	Std. D.	Mean	Std. D.
SA length	36.12	6.17	35.87	4.43	-0.206	0.837
SA diameter	0.93	0.45	0.96	0.43	-0.18	0.855
SA location to the landmark gonion	18.63	5.28	20.07	5.49	-1.05	0.294
SA origin	16.13	4.03	18.99	5.34	-2.069	0.039*