Table 2 Variables associated with mortality in children admitted to intensive care unit

Subjects, No. (%)

6,245 (98.0)

129 (2.0)

NA

NA

NA

Height SD score, mean (SD)

−1.13 (2.01)

−2.08 (2.80)

NA

NA

NA

Height category, No. (%)

 Short stature

1,668 (26.7)

63 (48.8)

2.62 (1.85–3.72)

2.73 (1.81–4.11)

 < 0.01

 Normal height

4,577 (73.3)

66 (51.2)

Reference

Reference

Age (year), median [IQR]

2.0 [0.0, 8.0]

1.0 [0.0, 7.0]

0.97 (0.93–1.01)

1.01 (0.96–1.05)

0.80

Female sex, No. (%)

2,846 (45.6)

66 (51.2)

1.25 (0.88–1.77)

1.08 (0.73–1.59)

0.71

Reason for ICU admission, No. (%)

 Cardiovascular

1,680 (26.9)

42 (32.6)

2.87 (1.34–6.15)

5.15 (2.22–11.90)

 < 0.01

 Respiratory

1,451 (23.2)

25 (19.4)

1.98 (0.89–4.41)

1.40 (0.59–3.33)

0.45

 Neurological

1,374 (22.0)

17 (13.2)

1.42 (0.61–3.31)

1.20 (0.49–2.96)

0.70

 Gastrointestinal

723 (11.6)

11 (8.5)

1.75 (0.70–4.37)

2.23 (0.83–6.03)

0.11

 Cardiopulmonary arrest

65 (1.0)

19 (14.7)

33.60 (14.20–79.70)

1.07 (0.36–3.17)

0.91

 Sepsis

32 (0.5)

7 (5.4)

25.20 (8.60–73.60)

4.21 (1.11–15.90)

0.03

 Others

920 (14.7)

8 (6.2)

Reference

Reference

Emergency admission, No. (%)

2,176 (34.8)

101 (78.3)

6.75 (4.42–10.30)

1.14 (0.42–3.07)

0.80

Admission category, No. (%)

 Post-elective surgery

4,036 (64.6)

24 (18.6)

Reference

Reference

 Post-emergency surgery

473 (7.6)

19 (14.7)

6.76 (3.67–12.40)

5.74 (1.81–18.30)

 < 0.01

 Non-surgical

1,736 (27.8)

86 (66.7)

8.33 (5.28–13.10)

5.72 (2.09–15.60)

 < 0.01

BMI SD score, mean (SD)

−0.43 (1.51)

−0.56 (1.95)

NA

NA

BMI status, No. (%)

 Underweight

903 (14.5)

27 (20.9)

1.69 (1.08–2.64)

1.11 (0.67–1.84)

0.70

 Normal weight

4,354 (69.7)

77 (59.7)

Reference

Reference

 Overweight

709 (11.4)

13 (10.1)

1.04 (0.57–1.88)

0.95 (0.49–1.84)

0.88

 Obese

279 (4.5)

12 (9.3)

2.43 (1.31–4.52)

1.36 (0.64–2.86)

0.42

PIM2, median [IQR]

0.90 [0.20, 2.00]

14.20 [4.70, 54.90]

1.06 [1.05–1.06]

1.05 [1.04–1.06]

 < 0.01