Any differences were not detected in SpO2 values in seconds of pre-op, 60, 90, 120, 150, 180, 210, 240, 270, 360, 420 neither in Group D nor in Group S (p > 0.05). SpO2 values in seconds of 30, 300, 360 were lower in Group D than Group S (p < 0.05). SpO2 values in seconds of 390, 450, 480, 510, 540, 570 were higher in Group D than Group S (p < 0.05). SpO2 values in Group S were higher till the 360th second but after the 360th second SpO2 values in Group D became higher. (SpO2: Oxygen saturation).

Table 3: Any differences were not detected in SpO₂ values in seconds of pre-op, 60, 90, 120, 150, 180, 210, 240, 270, 360, 420 neither in Group D nor in Group S (p > 0.05). SpO₂ values in seconds of 30, 300, 360 were lower in Group D than Group S (p < 0.05). SpO₂ values in seconds of 390, 450, 480, 510, 540, 570 were higher in Group D than Group S (p < 0.05). SpO₂ values in Group S were higher till the 360^th second but after the 360^th second SpO₂ values in Group D became higher. (SpO₂: Oxygen saturation).

	Group D	Group S	p
	Mean ± s.d.	Mean ± s.d.
SPO₂-pre	93.7 ± 1.3	94.1 ± 1.2	0.304
SPO₂-30	95.0 ± 2.9	96.7 ± 2.0	0.011
SPO₂-60	95.2 ± 3.7	96.3 ± 3.4	0.246
SPO₂-90	95.6 ± 4.0	96.0 ± 3.6	0.711
SPO₂-120	95.5 ± 4.7	95.2 ± 4.2	0.817
SPO₂-150	95.1 ± 4.2	95.2 ± 3.9	0.898
SPO₂-180	96.0 ± 3.4	95.4 ± 4.6	0.592
SPO₂-210	94.8 ± 4.4	95.4 ± 3.7	0.568
SPO₂-240	94.9 ± 4.6	96.3 ± 2.7	0.143
SPO₂-270	95.0 ± 4.4	96.7 ± 2.0	0.054
SPO₂-300	95.9 ± 3.6	97.6 ± 1.0	0.015
SPO₂-330	96.9 ± 1.8	97.7 ± 0.7	0.017
SPO₂-360	97.4 ± 1.3	97.3 ± 1.2	0.601
SPO₂-390	98.0 ± 1.2	97.2 ± 1.2	0.010
SPO₂-420	97.9 ± 1.3	97.5 ± 0.7	0.137
SPO₂-450	98.1 ± 1.3	97.0 ± 1.4	0.003
SPO₂-480	98.1 ± 1.1	97.3 ± 1.0	0.004
SPO₂-510	98.1 ± 1.2	97.2 ± 1.2	0.004
SPO₂-540	97.9 ± 0.6	97.5 ± 0.7	0.023
SPO₂-570	98.0 ± 1.1	97.0 ± 1.4	0.004
SPO₂-600	98.0 ± 0.7	97.3 ± 1.0	0.004

Student t test.