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Table 2 Demonstrates variables used for statistical analysis. Fisher’s exact test and Pearson’s chi test (Log. EuroSCORE) were utilized for statistical analysis

From: A 20-year multicentre outcome analysis of salvage mechanical circulatory support for refractory cardiogenic shock after cardiac surgery

Factors attributed to mortality and statistical analysis
Characteristics analyzed Alive Dead Odds ratio (95 % Conf. interval) p-value
Age (years)
 0–65 8 10 2.8 (0.362853–33.74714) 0.24
  > 65 2 7
Gender
 Male 9 14 1.928571 (0.1270413–112.3145) 0.5
 Female 1 3
Type of center
 Transplant 4 5 0.625 (0.0921389–4.488993) 0.44
 Non-transplant 6 12
Prev. cardiac surgery
 Re-do surgery 2 2 0.5333333 (0.0335265–8.873345) 0.48
 First time surgery 8 15
Surgical complexity
 Isolated surgery 6 10 1.05 (0.1662785–7.107629) 0.64
 Complex surgery 4 7
Type of Support
 VAD 3 1 0.1458333 (0.0026189–2.352801 0.13
 ECMO 7 16
Duration of Support
 0–7 days 8 15 0.5333333 (0.0335265 8.873345) 0.47
  > 7 days 2 2
Support complications
 Major haemorrhage 5 5 0.4166667 (0.0620347–2.804408) 0.25
 No major haemorrhage 5 12
 Major CVA 1 4 2.769231 (0.2140667–151.2664) 0.37
 No major CVA 9 13
 Renal failure 3 4 0.7179487 (0.0910803–6.420841) 0.52
 No renal failure 7 13
Log. EuroSCORE
 0–10 1 3   0.36 (Pearson’s chi2 test)
 10–20 1 6
  > 20 4 3
 Score not available 4 5
  1. Table information: Prev.cardiac surgery denotes whether the patient had had previous cardiac surgery through median sternotomy (i.e. redo surgery). Isolated surgery refers to whether the operation was isolated coronary artery bypass grafting surgery (CABG) or single valve surgery. Complex cardiac surgery refers to combined valve, CABG and/or aortic surgery. Type of center denotes whether the operating hospital in which the operation was performed was a cardiopulmonary transplant center. Log. EuroSCORE refers to logistic EuroSCORE