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Table 3 Multivariate logistic analyses of risk factors for postoperative hypoxaemia and a prolonged intensive care unit stay

From: Is obstructive sleep apnoea associated with hypoxaemia and prolonged ICU stay after type A aortic dissection repair? A retrospective study in Chinese population

Endpoint/risk factors Univariate analysis Multivariate analysis*
OR 95% CI p value OR 95% CI p value
Postoperative hypoxaemia       
Preoperative hypoxaemia (yes vs. no) 3.54 1.34–10.29 0.010 3.33 1.16–10.52 0.025
Obstructive sleep apnoea (yes vs. no) 4.42 1.66–12.89 0.003 3.28 1.14–10.10 0.028
AHI > 30/h (vs. < 15/h) 8.64 2.14–58.60 0.001 6.65 1.56–46.26 0.008
Prolonged intensive care unit stay       
Preoperative hypoxaemia (yes vs. no) 0.76 0.29–2.05 0.592 0.77 0.26–2.28 0.636
Obstructive sleep apnoea (yes vs. no) 3.84 1.32–11.17 0.010 4.05 1.27–12.90 0.018
AHI > 30/h (vs. < 15/h) 5.46 1.62–18.41 0.005 5.58 1.54–20.24 0.009
  1. CI confidence interval, OR odds ratio, AHI apnoea hypopnea index
  2. *Adjusted for age, gender, and body mass index