Table 4: Comparison of bispectral index (BIS) differences with pre-induction status at all time.

BIS

Group D

Group P

p value

Mean ± SD

Mean ± SD

Before induction

96.8 ± 1.6

96.5 ± 1.5

0.413

After induction

35.2 ± 8.4

34.1 ± 5.1

0.880

After intubation

44.2 ± 8.4

44.5 ± 4.5

0.947

5. min

40.1 ± 8.0

37.0 ± 5.6

0.073*

10. min

40.0 ± 7.0

37.6 ± 5.6

0.157

15. min

37.5 ± 6.2

37.0 ± 5.0

0.976

20. min

37.4 ± 6.5

36.9 ± 5.7

0.795

30. min

36.7 ± 6.6

34.7 ± 5.1

0.285

45. min

37.1 ± 7.0

35.1 ± 5.1

0.296

60. min

36.9 ± 7.0

36.1 ± 5.7

0.852

75. min

36.6 ± 7.6

37.0 ± 3.4

0.351

90. min

35.0 ± 6.9

37.7 ± 3.8

0.097*

After extubation

82.8 ± 3.6

82.9 ± 5.0

0.835

*These values are close to statistical significance. Therefore. it is defined as there is a tendency towards meaningfulness.

P values marked with dark black are statistically significant.

D: desflurane. P: propofol