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Table 3 Univariate and multivariate analysis for RBC transfusion (outcome 1)

From: Preoperative patient factors associated with blood product use in cardiac surgery, a retrospective cohort study

Factor Odds ratio (95% CI) P value Adjusted odds ratio P value
Gender (female vs. male) 1.678 (1.325–2.126) P < 0.001 1.536 (1.082– 2.053) P = 0.004
Age (per year increase) 1.017 (1.009–1.026) P < 0.001 1.018 (1.009–1.027) P < 0.001
Creatinine (per µmol/L increase) 1.004 (1.002–1.005) P < 0.001 1.006 (1.004–1.009) P < 0.001
Respiratory disease ( yes vs. no ) 1.183 (0.883–1.586) P = 0.259   
Dialysis (Yes vs No) 3.596 (1.787–7.236) P < 0.001 5.643 (1.305–24.398) P = 0.021
Diabetes ( yes vs. no ) 1.094 (0.870–1.376) P = 0.442   
Smoking (yes vs. no) 0.866 (0.690–1.087) P = 0.214   
BMI (per kg/m2 increase) 0.975 (0.956–0.994) P = 0.010 0.991 (0.971–1.011) P = 0.366
TBSA (per m2 increase) 0.251 (0.150–0.419) P < 0.001 0.353 (0.178–0.700) P = 0.003
NYHA     
 Class 1 1.115 (0.895–1.390) P = 0.330   
 Class 2 0.869 (0.683–1.105) P = 0.251   
 Class 3 0.974 (0.742–1.279) P = 0.851   
 Class 4 1.140 (0.709–1.833) P = 0.589   
Preoperative Hb (per g/L increase) 0.972 (0.965–0.978) P < 0.001 0.978 (0.970–0.985) P < 0.001
Antiplatelet use < 24 h ( yes vs. no ) 1.039 (0.760–1.422) P = 0.809   
Anticoagulant use < 24 h ( yes vs. no ) 1.476 (1.147–1.898) P = 0.002 1.302 (0.999–1.701) P = 0.053
Non valve/CABG (yes vs. no) 1.641 (1.210–2.225) P < 0.001 1.567 (1.133–2.164) P = 0.007
Previous cardiothoracic intervention (yes vs. no) 1.774 (1.353–2.325) P < 0.001 1.563 (1.169–2.087) P = 0.004
Presence of cardiogenic shock preoperatively (yes vs. no) 3.645 (2.101–6.324) P < 0.001 3.257 (1.801–5.882) P < 0.001