Table 3. Statistical Comparison of mean values of axial coronal USPV (m/s) between groups.

Comparison	Mean	Difference	P	CI (95%)
1-2	2727.9	-11	0.4851	-42.62	20.62
	2738.9
1-3	2727.9	52.1	0.002*	20.47	83.72
	2675.8
1-4	2727.9	-19.3	0.2238	-50.92	12.32
	2747.2
2-3	2738.9	63.1	0.0003*	31.47	94.72
	2675.8
2-4	2738.9	-8.3	0.5978	-39.92	23.32
	2747.2
3-4	2675.8	-71.4	<0.0001*	-103.02	-39.77
	2747.2

^*Legend: CI: confidence interval; significant difference