Table 3.

Comparison of the Number of Cases of Intraoperative Changes in Cerebral Oxygen Saturation Between the Two Groups (n=20)

Item	Electroacupuncture Group	Control Group	Z or t	P
30%≤rSO2 increased>20%(n,%)	4 (20%)	0	−4.235	0.000*
20%≤rSO2 increased>10%(n,%)	14 (70%)	5 (25%)	−3.881	0.000*
10%≤rSO2 increased>0 (n,%)	2 (10%)	8 (40%)	22.67	0.000*
Total rSO2 increase (n, %)	20 (100%)	13 (65%)
0<rSO2 decreased ≤10% (n,%)	0	5 (25%)	4.651	0.000*
10<rSO2 decreased ≤20% (n, %)	0	2 (10%)	2.31	0.001*
20<rSO2 decreased ≤30% (n, %)	0	0	0	1
Total rSO2 decrease (n, %)	0 (0)	7 (35%)

Note: Compared with group C, *P<0.01.