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Table 2 Baseline characteristics of included patients

From: Low bicarbonate replacement fluid normalizes metabolic alkalosis during continuous veno-venous hemofiltration with regional citrate anticoagulation

Patient characteristics

Number of eligible patients

42

Age, median (IQR), year

59.4 (47.9–69.2)

Sex, no. (%)

 Male

27 (64)

 Female

15 (35)

Weight, median (IQR), kg

74.0 (65.0–88.5)

Body mass index, median (IQR), kg/m2

25.6 (21.8–30.8)

Obesity (BMI ≥ 30), no. (%)

11 (27)

Comorbidities, no. (%)

 Diabetes

8 (19)

 Chronic obstructive pulmonary disease

4 (9)

 Immuno-incompetence

13 (31)

 Cardiac failure

8 (19)

 Liver failure

15 (35)

 End-stage renal disease

3 (7)

 Home oxygen/ventilation

1 (2)

Location before ICU admission, no. (%)

 Other hospital ward

19 (45)

 Emergency room

15 (35)

 Other ICU

8 (19)

Reason for ICU admission, no. (%)

 Cardiovascular/respiratory (e.g. cardiogenic, septic-shock)

35 (83)

 Liver failure

7 (16)

Surgical status at ICU admission, no. (%)

 Scheduled surgery

1 (2)

 Emergency surgery

5 (11)

 No surgery

36 (85)

SAPS 3 at ICU admission, median (IQR)

74.0 58.8–84.0

Duration of CVVH therapy, median (IQR), hours

215 (101–398)

 Pre-switch

66 (38–156)

 Post-switch

111 (45–335)

Respiratory status during study period, no. (%)

 Mechanical ventilation during whole study period

20 (48)

 Mechanical ventilation intermittently during study period

12 (29)

 No mechanical ventilation

9 (21)

 Study participation, median (IQR), hours

114 (84–144)

 ICU stay, median (IQR), days

19 (10–29)

 Hospital stay, median (IQR), days

40 (23–63)

Mortality, no./total no. (%)

 ICU

12/42 (28.6)

 Hospital

19/42 (45.2)