Table 2 Clinical characteristics for the 743 patients, including patient characteristics, clinical examination data, co-morbidities and medical history, and outcomes.

Age (years)

62 [61, 63]

Gender (% female)

63.3

APACHE IV Score

76.9 [74.8, 79.2]

SAPS II Score

46.9 [45.7, 48.0]

BMI

26.7 [26.4, 27.1]

Surgical patient (%)

35.0

Previous admission to ICU (%)

11.6

Clinical examination

Cardiac index > 2.2 (%)

42.7

Mottling (% with severe, > 4)

3.1

Mechanically ventilated at admission (%)

61.8

Worsened respiratory condition after 24 h (%)

12.4

Urine output in previous 6 h (ml/kg/h)

0.9 [0.84, 0.95]

CRT prolonged (%)

29.9

EMV score

11.27 [10.9, 11.63]

Co-morbidities and medical history

History of CVD (%)

5.0

History of CKD (%)

6.9

History of cirrhosis (%)

3.4

History of COPD (%)

12.4

Previous dialysis (%)

1.4

History of diabetes (%)

20.3

History of hematological malignancy (%)

4.0

History of metastatic disease (%)

3.6

History of myocardial infarction (%)

8.2

History of respiratory failure (%)

4.9

Admission diagnosis by organ system^a

Cardiovascular

32.8

Gastrointestinal

14.2

Genito-urinary

1.2

Haematological

1.4

Metabolic

2.3

Musculoskeletal/skin

0.9

Neurological

15.0

Respiratory

19.5

Transplant

5.1

Trauma

7.7

Outcomes^a

In-ICU mortality (%)

19.4

30-day mortality (%)

22.3

90-day mortality (%)

27.6

No AKI (%)

79.7

AKI stage 1 (%)

59.8

AKI stage 2 or 3 (%)

44.3

Required vasoactive medication (%)

48.6

Any type of shock (%)

51.6

Required RRT (%)

10.1

ICU length of stay (days)

6.0 [5.4, 6.6]