Table 3.
Multivariable Logistic Regression: 30-d Readmission Rates
| Parameter | Odds Ratio (95% CI) | P Value |
|---|---|---|
| Age ≥65 y | 0.84 (0.61–1.16) | .30 |
| Male sex | 0.97 (0.67–1.43) | .88 |
| CCI (per unit increase) | 1.11 (1.01–1.21) | .02 |
| Pre (compared to post) PBM | 1.36 (0.97–1.90) | .07 |
| Redo sternotomy | 0.35 (0.06–1.17) | .09 |
| Renal disease | 2.35 (1.61–3.40) | <.0001 |
| Pulmonary disease | 1.17 (0.77–1.76) | .47 |
| Diabetes mellitus | 1.10 (0.77–1.55) | .60 |
| Low (compared to high) Hb cohorta,b | 1.16 (0.84–1.61) | .36 |
Abbreviations: CCI, Charlson Comorbidity Index; CI, confidence interval; Hb, hemoglobin; PBM, patient blood management.
a
When discharge Hb was modeled as a continuous variable in the multivariable model, the odds ratio (95% CI) for each g/dL decrease in Hb was 1.15 (0.99–1.33) (P = .07).
b
When discharge Hb was modeled as a dichotomous variable in the multivariable model, comparing the group with discharge Hb <8 g/dL to that with discharge Hb ≥8 g/dL, the odds ratio (95% CI) was 1.77 (1.05–2.88) (P = .03).