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Table 2 Risk factors for late transfusion or late anemia from multivariable models

From: Predicting late anemia in critical illness

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)
  1. 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.