Skip to main content

Table 5 Factors associated with postoperative allogeneic blood transfusion rate

From: The use of cell salvage during second-stage reimplantation for the treatment of chronic hip periprosthetic joint infection: a retrospective cohort study

Coefficient Univariate Logistic regression Multivariate logistic regression
HR P value 95% CI Adjusted HR P value 95% CI
Age (year)
 < 60 Reference Reference Reference Reference Reference Reference
 ≥ 60 2.810 .031 1.101–7.166 3.092 .041 1.048–9.123
BMI (kg/m2) 0.808 .004 0.698–0.935 0.805 .007 0.687–0.944
Preoperative hemoglobin (g/l)
 < 120 Reference Reference Reference Reference Reference Reference
 ≥ 120 0.156 .005 0.043–0.567 0.092 .004 0.018–0.477
Preoperative hematocrit (%)
 < 45 Reference Reference Reference NA NA NA
 ≥ 45 0.218 .270 0.034–2.163 NA NA NA
Intraoperative cell salvage
 No Reference Reference Reference Reference Reference Reference
 Yes 0.358 .037 0.137–0.939 0.176 .006 0.051–0.608
  1. HR hazard ratio, NA not applicable
  2. P < .05, statistically significant difference