Table 5. Differences in flow asymmetry (right – left) between cases and controls for the upper and mid-neck IJV.

Flow asymmetry* (Right minus left)	Cases (n = 95)		Controls (n = 95)
	Mean	SD	Mean	SD	t-test	p
Upper IJV	116.53	239.88	74.34	274.72	1.104	0.273
Mid-neck IJV	114.33	325.66	138.16	330.43	−0.528	0.599

IJV: Internal jugular veins; SD: standard deviation.