Outcomes of coronary artery bypass grafting (CABG) in patients with OSA-COPD overlap syndrome versus COPD alone: an analysis of US Nationwide Inpatient Sample

Table 3 Associations between OSA-COPD overlap versus COPD alone, respiratory failure / prolonged mechanical ventilation, postoperative AF, and stratified AKI, by age and obesity status

Subgroup	Respiratory failure / prolonged mechanical ventilation		AKI		Postoperative AF
Subgroup	aOR (95% CI)	p	aOR (95% CI)	p	aOR (95% CI)	p
Age < 60 years	1.21 (0.99, 1.49)	0.062	1.02 (0.75, 1.40)	0.889	1.21 (0.90, 1.64)	0.200
Age ≥ 60 years	1.27 (1.12, 1.43)	< 0.001	1.20 (1.04, 1.37)	0.009	0.99 (0.85, 1.17)	0.936
Non-obese	1.20 (1.06, 1.36)	0.004	1.10 (0.95, 1.28)	0.200	0.99 (0.83, 1.18)	0.931
Obese	1.40 (1.16, 1.69)	< 0.001	1.31 (1.05, 1.63)	0.016	1.07 (0.85, 1.37)	0.559

Adjusted for sex, race, household income, insurance status, smoking, hospital location/ teaching status, CPAP use and prior PCI
Abbreviations: AKI Acute kidney injury, CPAP Continuous positive airway pressure, PCI Percutaneous coronary intervention, AF Atrial fibrillation, OR Odds ratio, aOR adjusted odds ratio, CI Confidence interval

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