Table 3

- Comparison of the mean carboxyhemoglobin values of the groups by time.

Time	Group H	Group L	P-values^{^*}
T0 COHb	1.36±1.14	1.40±1.23	0.874
T1 COHb	1.11±1.06	1.12±1.32	0.983
T2 COHb	0.99±1.00	1.25±1.34	0.385
T3 COHb	0.85±0.93	1.36±1.35	0.085
T4 COHb	0.72±0.88	1.27±1.23	0.046
T5 COHb	0.60±0.76	1.26±1.10	0.007
T6 COHb	0.61±0.74	1.39±1.21	0.003
T7 COHb	0.65±0.73	1.30±1.05	0.006
T8 COHb	0.59±0.65	1.44±1.17	0.001
T9 COHb	0.51±0.63	1.45±1.24	<0.001
T10 COHb	0.54±0.62	1.51±1.31	<0.001
T11 COHb	0.54±0.61	1.58±1.38	<0.001
P-values^{^**}	<0.05	>0.05

Values are presented as mean ± standard deviation (SD).

↵^* Inter-group comparison,
↵^** intragroup comparison, Group H: high-flow group, Group L: low-flow group, COHb: carboxyhemoglobin