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Table 3 Risk model for re-exploration for bleeding and deep sternum wound infection

From: Deep sternal wound infection after cardiac surgery

  Re-exploration for bleeding Deep sternum wound infection
  IsolatedCABG Valve Aorta Isolated CABG Valve Aorta
Age (60,6165,6670,7175,7680,81) 1.09 1.13 1.07   1.15  
BSA × 10 0.93 0.93     
Male gender   1.44 1.27    
BMI (30)      2.19 2.66
Smoking history (Yes)     1.51
Current smoker (Yes)   1.23     
Diabetes control(Yes)     1.27 1.28 1.44
Renal failure(Yes) 1.94    1.77 1.53  
Dialysis (Yes)      1.54  
Hypertension(Yes)     1.26   
Infectious endocarditis (Yes)      2.53
Infectious endocarditis (Active)   1.93   
COPD (Mild, Moderate, Severe)     1.94   1.74
Carotid artery lesion (Yes(unilateral, bilateral))    1.69  
Extracardiac arteriopathy (Yes(Thoracic aorta, Peripheral artery including abdominal aorta))   1.37 1.28    
Extracardiac arteriopathy (Peripheral artery including abdominal aorta)    1.46  
Consciousness Disorder within 24 hours (Yes)   1.59    2.49  
Previous surgery (CABG)(Yes) 5.17 2.25 2.13 2.06 1.69 1.76
Congestive heart failure (Yes)   1.37   1.45   
Cardiogenic shock (Yes) 1.46 1.66 1.43 1.65 1.80  
Arrhythmia (Yes)      1.28  
NYHA(II and over)   1.79   
Inotropic Agents(Yes)      1.83 1.80
Mitral Stenosis (Yes)   1.28   
3 vessel disease 1.29    1.52 1.59  
2 or more vessel disease   1.95
LV Function(Medium)    1.16    
LV Function(bad) 1.71      
Aortic Insufficiency(IIand over)    1.24    
Mitral Insufficiency (IIand over)    1.22  
Tricuspid Insufficiency (IIand over) 1.29     
Operation status (Emergent, Salvage) 1.75   1.43    
Operation status (Urgent, Emergent, Salvage)      1.78
CABG (Yes) 1.24 1.81 1.59  
Unplanned CABG(Yes)       
Aortic valve surgery (Yes)   1.32     1.39
Aortic valve surgery (Replacement)   1.59   
Combined valve surgery 1.21  
Aortic Aneurysm Type(Dissection) 1.38  
Aortic Aneurysm Type(Pseudoaneurysm)   2.09
Cause of operation(Rupture) 1.62 1.40
Operation site (Arch) 1.4 2.12
Operation site (Root)   1.45
Operation site (Ascending)   1.47
Operation site (Thoracoabdominal) 1.65  
Maze operation (Yes) 1.88  
  1. ━; not included in questionnaire, BSA; body surface area, BMI; body mass index, COPD; chronic obstructive pulmonary disease, CVA; cerebrovascular accident, TIA; transient ischemic attack, RIND; reversible ischemic neurological deficit, CCS; Canadian cardiovascular society classification, NYHA; New York heart association, LV; left ventricle.