Table 3.

Mean value of MCA PI in both groups.

MCA PI	Normal Cognitive		Impaired Cognitive		p-value***
	Mean	SD	Mean	SD
Right side PI	0.87	0.15	1.18	0.22	< 0.01
Left side PI	0.86	0.18	1.21	0.17	< 0.01

^***Student T-test.