Table 2 Bispectral index (BIS) of 80 pregnant women (40 = low-dose group and 40 = high-dose group) undergoing caesarian section

Baseline

95.97 ± 1.56

95.55 ± 1.61

0.21

Induction to skin incision

43.89 ± 4.87

42.81 ± 3.88

0.38

Skin incision to delivery

39.74 ± 6.83

36.86 ± 4.37

0.02

 Uterine closure

34.75 ± 2.33

36.02 ± 3.36

0.23

 Muscular closure

40.46 ± 3.85

38.57 ± 3.21

0.36

 Subcutaneous closure

45.09 ± 4.33

42.77 ± 2.57

0.03

 Skin closure

52.39 ± 4.28

49.50 ± 3.91

0.04

 Stop volatile

60.60 ± 3.66

59.80 ± 5.27

0.62

 Eye opening

73.12 ± 5.88

72.52 ± 6.41

0.91

 Extubation

83.85 ± 3.43

82.37 ± 3.44

0.06