Table 6: Comparison of regional cerebral oximetry (NIRS-right) differences measured by Near Infrared Spectroscopy (NIRS) with pre-induction status at all times.

NIRS-right	Group D	Group P	p value
NIRS-right	Mean ± SD	Mean ± SD	p value
Before induction	72.7 ± 7.9	68.6 ± 7.0	0.061^*
After induction	76.3 ± 9.0	75.0 ± 9.2	0.871
After intubation	80.6 ± 9.0	76.3 ± 9.5	0.093^*
5. min	76.6 ± 8.0	69.0 ± 8.9	0.049
10. min	76.1 ± 8.0	69.0 ± 8.9	0.002
15. min	74.7 ± 8.8	67.3 ± 8.6	0.005
20. min	73.9 ± 8.4	66.4 ± 9.1	0.003
30. min	72.1 ± 8.2	65.1 ± 8.6	0.003
45. min	71.4 ± 8.5	63.7 ± 9.5	0.003
60. min	71.2 ± 8.1	63.2 ± 8.9	0.001
75. min	72.9 ± 8.7	62.4 ± 6.2	0.002
90. min	72.9 ± 8.7	62.4 ± 6.2	0.001
After extubation	73.5 ± 8.5	71.7 ± 9.0	0.641
NIRS-right	Group D	Group P	p value
NIRS-right	Mean ± SD	Mean ± SD	p value
Before induction - after induction	-3.6 ± 5.4	-6.3 ± 4.3	0.023^*
Before induction - after intubation	-7.9 ± 6.5	-7.6 ± 5.2	0.959
Before induction - 5. minutes	-3.9 ± 5.4	-0.3 ± 5.4	0.342
Before induction - 10. minutes	-3.4 ± 6.0	-0.3 ± 5.4	0.100
Before induction - 15. minutes	-2.0 ± 6.9	1.0 ± 5.7	0.137
Before induction - 20. minutes	-1.2 ± 7.2	2.2 ± 5.8	0.091^*
Before induction - 30. minutes	0.5 ± 7.0	3.5 ± 4.7	0.116
Before induction - 45. minutes	1.2 ± 6.8	4.9 ± 5.3	0.039
Before induction - 60. minutes	1.5 ± 6.7	5.4 ± 5.4	0.064^*
Before induction - 75. minutes	4.4 ± 17.6	5.7 ± 5.0	0.069^*
Before induction - 90. minutes	1.0 ± 7.2	7.2 ± 4.0	0.020
Before induction - after extubation	-0.8 ± 7.0	-3.0 ± 4.9	0.059^*

^*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