Table 1 Population characteristics

Patients included (n)

960

333

Gender (male/female, %)

56/44

59/41

Age (years)

3.0 (<1–9.0)

2.0 (<1–6.0)

−1.6 (−2.2 –0.9)

<0.001

  < 1 year

259 (27.0)

112 (33.6)

 1–5 years

245 (25.5)

133 (40.0)

 6–12 years

334 (34.8)

54 (16.2)

  > 12 years

122 (12.7)

34 (10.2)

Weight (kg)

14.0 (8.5–28.0)

12.0 (6.9–20.0)

–5.0 (−7.3–2.7)

<0.001

PRISM score

10.0 (4.0–15.0)

17.0 (13.0–23.0)

11.2 (10.4–12.1)

< 0.001

 Respiratory

25.0

30.3

 Trauma

9.9

9.9

 Postoperative

21.9

16.2

 Neurological

23.9

26.4

 Cardiac

3.2

5.7

 Renal

2.4

1.5

 Gastro-intestinal

2.1

0.9

 Intoxication

3.3

2.4

 Endocrinological

1.0

0.6

 Other

7.3

6.0

 Hb (mg/dL)

10.8 (9.5–12.1)

10.0 (9.0–11.4)

−0.8 (−1.1 −0.6)

< 0.001

 Steroids (%)

15.2

17.1

0.23

 Vasopressors/inotropics (%)

6.4

14.2

<0.001

 Anaemia (%)

54.4

64.3

<0.001

 CRP (mg/dL)

19.0 (4.0–67.4)

22.7 (7.9–77.5)

7.6 (−3.0–18.0)

0.16

 WBC count (× 10⁹/L)

11.6 (8.1–16.1)

10.7 (7.2–15.9)

-0.6 (−1.5–0.35)

0.21

RDW on admission

13.8 (13.0–15.1)

14.2 (13.1–15.3)

0.4 (0.1–0.6)

0.002

ICU LOS (days)

2.5 (1.0–5.8)

6.6 (2.5–13.9)

8.9 (7.8–10.0)

< 0.001

ICU mortality (%)

4.3

10.2

< 0.001

 Quintile 1 (11.2–12.8)

181 (18.8)

49 (14.7)

 Quintile 2 (12.9–13.4)

209 (21.7)

65 (19.5)

 Quintile 3 (13.5–14.3)

198 (20.6)

66 (19.8)

 Quintile 4 (14.4–15.4)

189 (19.7)

78 (23.4)

 Quintile 5 (15.5–29.6)

183 (19.1)

75 (22.5)

28 day VFD

23.0 (15.0–26.0)

Nadir P/F ratio during MV

112 (72–231)