Table 1 Demographic, clinical and laboratory parameters of the study population (N = 61)

Age (years)

45

33, 52

Sex (m/f)

45/16

BMI (kg/m², n = 58)

24.5

22.5, 28.6

Days between onset of symptoms and hospital admission

6

4, 7

Length of inpatient stay (days)

7

5, 9

Span of body weight change during hospital stay (kg, n = 56)^a

4.2

2.3, 5.8

Highest urine output per 24 h (ml, n = 56)

5850

4500, 8300

Leukocyte count at admission (1/μl)

8680

6685, 10725

Platelet count at admission (thousand/μl)

109

71, 178

Plasma Sodium (mmol/l)

135

132, 139

C-reactive protein at admission (mg/dl, n = 60)

6.3

3.9, 9.6

Procalcitonin at admission (ng/ml, n = 19)

1.27

0.9, 1.9

Estimated baseline creatinine (μmol/l)

86

82, 89

Plasma creatinine at admission (μmol/l)

221

106, 344

Peak plasma creatinine (μmol/l)

344

185, 618

Patients with AKIN stage 0–2/3

23/38

Urinary protein/creatinine ratio (mg/g, n = 23)

1492

552, 10303

Urinary albumin/creatinine ratio (mg/g, n = 24)

1007

223, 8440

Urine dipstick protein (neg/(+)/+/++/+++, n = 59)

2/6/17/28/6

Urinary NGAL (ng/ml, n = 55)

83

31, 189

Urinary NGAL/creatinine ratio (ng/mg, n = 49)

137

43, 371