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Table 2 Characteristics of ICU-survivors compared to non-survivors

From: Mortality and associated risk factors in perioperative acute kidney injury treated with continuous renal replacement therapy

Variable

Survivors (n = 90)

Non-survivors (n = 67)

p value

Age (years)

66.7 ± 12.4

71.2 ± 9.7

0.01

Women n/%

19/21

25/37

0.025

Hypertension n/%

59/66

50/75

0.22

Diabetes n/%

24/27

12/18

0.20

Pulmonary disease n/%

11/12

9/13

0.82

Coronary artery disease n/%

29/32

32/48

0.048

Peripheral artery disease n/%

9/10

14/21

0.06

Malignancy n/%

10/11

2/3

0.06

Peak SOFA

14.4 ± 3.1

15.7 ± 2.6

0.008

SAPS-II

49.2 ± 13.7

55.7 ± 11.7

0.002

APACHE-II

22.1 ± 6.7

26.2 ± 5.3

< 0.0001

Elective operation (n/%)

22/24.4

22/32.8

0.25

Operation room visits

2 (1–3)

2 (1–2)

0.25

Sepsis (n/%)

31/34.4

26/38.8

0.57

Ventilator days

8.9 (4.9–13.9)

4.9 (1.5–9.8)

0.001

Hemoglobin (g/l)

98 (90–114)

100 (88–111)

0.60

Leukocytes (E9/l)

11.4 (8.3–16.45)

10.6 (8.1–17.3)

0.86

Thrombocytes (E9/l)

115 (89–170)

111 (83–163)

0.50

C-reactive protein (mg/l)

92 (55–190)

53 (24–214)

0.14

Creatinine (μmol/l)

191 (122–279)

151 (119–202)

0.08

Urea (mmol/l)

10.6 (7.5–18.6)

9.8 (6.7–17.1)

0.60

Alanine aminotransferase (IU/l)

33 (18–83)

25 (14–63)

0.41

Bilirubin (μmol/l)

15 (9–30)

18 (11–39)

0.41

International normalized ratio

1.4 (1.2–1.7)

1.5 (1.3–1.8)

0.16

pH (U)

7.32 (7.26–7.36)

7.31 (7.22–7.35)

0.06

BE (mmol/l)

− 5.4 (− 8.8 to − 3.2)

− 7.2 (− 11.0 to − 3.3)

0.06

Bicarbonate (mmol/l)

19.7 ± 4.0

18.4 ± 4.0

0.04

Lactate (mmol/l)

2.5 (1.6–4.2)

4.2 (2.3–7.4)

0.0002

Sodium (mmol/l)

136 ± 4

137 ± 3

0.11

Potassium (mmol/l)

4.4 (3.9–4.9)

4.3 (3.9–4.8)

0.39

Chloride (mmol/l)

109 ± 4.7

109 ± 4.3

0.83

Ionized calcium (mmol/l)

1.10 (1.04–1.14)

1.09 (1.02–1.16)

0.89

Mean arterial pressure (mmHg)

73 ± 15

70 ± 12

0.09

Norepinephrine dose (μg/kg/min)

0.10 (0.03–0.16)

0.12 (0.03–0.28)

0.09

Maximum norepinephrine dose (μg/kg/min)

0.20 (0.13–0.33)

0.33 (0.20–0.53)

< 0.0001

Number of vasopressors (n)

1 (1–2)

2 (1–3)

0.03

  1. SOFA Sequential Organ Failure Assessment Score, SAPS-II Simplified Acute Physiology Score, APACHE-II Acute Physiology And Chronic Health Evaluation Score II, RBC red blood cell
  2. Values are mean ± SD or median (IQR)
  3. Laboratory values are given at ICU admission, unless stated otherwise