Table 2

Risk factors for late transfusion or late anemia from multivariable models

Risk factora
Odds ratio (95% confidence interval)

Late transfusion
Late anemia

Abnormal lactate (> 1.5 mg/dl)
1.64 (1.28–2.09)
1.79 (1.41–2.26)
Transfused
0.64 (0.45–0.87)
-
Surgical patient
2.51 (1.86–3.40)
2.90 (2.19–3.83)
Non-emergent surgery
1.72 (1.22–2.22)
1.60 (1.26–2.04)
Mechanical ventilation
1.73 (1.37–2.19)
-
Hemoglobin deficitb
1.21 (1.16–1.26)
1.30 (1.25–1.35)
Abnormal creatinine (≥ 1.6 mg/dl)
1.75 (1.38–2.21)
-
Inotropic support
-
1.69 (1.29–2.21)

Late transfusion, transfused 7 days or more after admission to intensive care unit; late anemia, reached or would have reached 7.0 g/dl at 7 days or more after admission to intensive care unit. aWorst value recorded up to 6 hours after admission to intensive care unit. bCalculated as g/dl lower than 14 g/dl, with zero deficit defined as a baseline hemoglobin of at least 14 g/dl.

Milbrandt et al. Critical Care 2006 10:R39   doi:10.1186/cc4847