Table 3 Univariate and multivariate logistic regression models for risk factors of pulmonary infections

Prophylaxis with cefazolin/cefuroxime

0.708

0.462 ~ 1.086

0.114

0.685

0.441 ~ 1.065

0.093

Respiratory comorbidities

1.125

0.705 ~ 1.797

0.621

1.088

0.609 ~ 1.945

0.775

Circulatory comorbidities

1.314

0.897 ~ 1.925

0.160

1.378

0.927 ~ 2.048

0.113

Pre-operative antibiotics use

0.988

0.684 ~ 1.428

0.950

0.894

0.610 ~ 1.311

0.567

FEV₁/FVC <70%

1.144

0.791 ~ 1.655

0.475

1.050

0.709 ~ 1.554

0.809

COPD history

1.176

0.607 ~ 2.280

0.631

1.041

0.445 ~ 2.438

0.926