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Table 1 Patient demographics and clinical values

From: Serum lactate poorly predicts central venous oxygen saturation in critically ill patients: a retrospective cohort study

Patient characteristics Value
Mean age, years (SD) 58 (19)
Males (%) 1113 (54)
Mortality (%) 1134 (55)
Mean hospital length of stay (SD) 20 (22)
Mean ICU length of stay (SD) 8.8 (13)
Need for dialysis (%) 309 (15)
Mechanically ventilated (%) 1258 (61)
Sepsis (%) 80 (3.9)
Severe sepsis (%) 1051 (51)
Septic shock (%) 454 (22)
Cardiogenic shock (%) 68 (3.3)
Traumatic shock (%) 49 (2.4)
Shock NOS (%) 43 (2.1)
Diabetes (%) 763 (37)
Chronic kidney disease (%) 701 (34)
Chronic respiratory failure (%) 309 (15)
Chronic hypertension (%) 1340 (65)
Chronic liver disease (%) 639 (31)
Serum lactate < 2.0 mmol/L (%) 1186 (51)
Serum lactate 2.0–4.0 mmol/L 732 (31)
Serum lactate > 4.0 mmol/L (%) 430 (18)
ScvO2 < 65 (%) 607 (26)
ScvO2 65–75 (%) 673 (29)
ScvO2 > 75 (%) 1068 (45)
Patients receiving epinephrine (%) 206 (10)
Patients receiving norepinephrine (%) 1237 (60)
Patients receiving dopamine (%) 1835 (89)
Patients receiving metformin (%) 134 (6.5)
Patients receiving linezolid (%) 474 (23)
Cortisol mean (SD) in μg/dL (n = 603) 37.3 (33.8)
Creatinine mean (SD) in mg/dL (n = 1377) 1.87 (1.72)
AST mean (SD) in U/L (n = 1166) 374 (1455)
Hemoglobin mean (SD) in g/dL (n = 1139) 9.68 (2.22)
Thiamine mean (SD) in μg/dL (n = 8) 154 (68.2)
Total bilirubin mean (SD) in mg/dL (n = 1170) 2.39 (4.35)
  1. ICU intensive care unit, ScvO2 central venous oxygen saturation, AST aspartate aminotransferase