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Table 1 Patient characteristics

From: Sublingual microcirculation does not reflect red blood cell transfusion thresholds in the intensive care unit—a prospective observational study in the intensive care unit

CharacteristicsTotal (n = 64)Hb 75 g/l (n = 43)Hb 90 g/l (n = 21)
Male, n (%)39 (61)26 (60)13 (61)
Age, years68 (58–77)67 (53–78)70 (64–77)
SOFA7 (4–11)5 (3–8)10 (7–12)
Septic shock, n (%)12 (19)11 (26)2 (10)
Cardiogenic shock, n (%)21 (33)9 (21)12 (57)
Hemorrhagic shock, n (%)22 (34)15 (35)6 (29)
Other, n (%)9 (14)8 (19)1 (5)
Intubation, n (%)29 (45)16 (37)13 (62)
Hb before RBCT, (g/l)75 (72–81)73 (71–75)85 (81–88)
Lactate > 1.8 (mmol/l) before RBCT, n (%)18 (28)9 (21)9 (43)
Lactate before RBCT (mmol/l)1.2 (0.8–2.0)1.1 (0.8–1.7)1.6 (1.1–2.5)
NOR (μg/kg/min)0.03 (0.00–0.08)0.00 (0.00–0.04)0.05 (0.03–0.07)
SpO2 before RBCT98 (95.5–100)99 (96–100)97 (95–100)
Days to RCBT3 (2–6)3 (1–4)4 (2–7)
Total days in ICU4.5 (2–11)4 (2–11)7 (4–11)
Death in ICU, n (%)8 (13)6 (14)2 (10)
  1. Hb hemoglobin, SOFA sequential organ failure assessment, RBCT red blood cell transfusion, NOR noradrenaline, SpO2 peripheral oxygen saturation, ICU intensive care unit