Table-III.

Comparison of NIHSS neurological function scores between the two groups before and after the operation (χ̅±S).

Group	n	Preoperative	After operation
Group-A	55	15.76±3.09	6.71±2.42*
Group-B	51	15.45±3.25	10.88±2.88*
t		0.507	8.088
P		0.613	<0.001

Note:

^*refers to the comparison with the pre-operative score, P<0.05.