Table 3.

Bispectral index scale (BIS) values in both groups

Bispectral index scale (BIS) values	Group I (mean ± SD)	Group II (mean ± SD)	P-value
After induction	66.8 ± 6.5	67.1 ± 5.2	0.894
10 min.	61.7 ± 5.4	65.6 ± 4.8	0.055
20 min.	56.1 ± 3.2	63.7 ± 2.3	0.041*
30 min.	52.6 ± 5.4	56.2 ± 3.6	0.036*
40 min.	52.3 ± 4.5	55.3 ± 2.4	0.045*
50 min.	48.1 ± 4.7	55.2 ± 4.6	0.040*
60 min.	45.9 ± 3.4	53.2 ± 4.9	0.047*
70 min.	45.2 ± 1.3	52.6 ± 6.1	0.043*
80 min.	46.3 ± 1.5	51.1 ± 5.6	0.041*

Group I: magnesium group, Group II: control group

Data are as mean ± SD

*Statistically significant difference

BIS Bispectral Index Scale