Effect of one-lung ventilation on the correlation between left and right cerebral saturation

BMC Anesthesiology

Table 3 The association between the absolute difference of left and right SctO₂ and postoperative delirium

Variables	Univariate analysis		Multivariate analysis
Variables	Odds ratio (95% CI)	P	Odds ratio (95% CI)	P
Max absolute difference (per 1% increase)	1.029 (0.976, 1.084)	0.286	1.023 (0.963, 1.087)	0.463
Intraoperative hypoxia (yes)	3.592 (1.117, 11.554)	0.032	3.647 (0.988, 13.457)	0.052
Intraoperative hypotension (yes)	2.735 (1.100, 6.800)	0.030	1.681 (0.608, 4.646)	0.316
Midazolam (yes)	2.750 (1.095, 6.907)	0.031	2.687 (0.951, 7.594)	0.062

A hypoxia was defined as peripheral oxygen saturation (SpO₂) was lower than 90% and last 1 min
Hypotension was defined as systolic blood pressure < 90 mmHg or 70% of the baseline value that required treatment
SctO₂ Cerebral tissue saturation, CI Confidence interval

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