Table 5.

Risk factors of late readmission associated with characteristics on first PICU admission.

First PICU admission of characteristics	Late readmission (N = 70)	Control group (N = 206)	p
Age (y), median (IQR)	1.25 (0.50–4.44)	1.25 (0.55–4.62)	0.100
Male sex, n (%)	38 (54.29)	111 (53.88)	0.927
Weight (kg), median (IQR)	10.35 (6.23–17)	11.65 (7.59–18.25)	0.099
With chronic conditions, n (%)	37 (52.86)	32 (15.53)	<0.001*
Strongkids scores on admission, median (IQR)	3 (2–3)	2 (1–2)	<0.001*
Admission primary diagnostic category, n (%)			0.021*
Respiratory	31 (44.29)	89 (43.20)
Neurologic	6 (8.56)	19 (9.22)
Cardiovascular	9 (12.86)	17 (8.25)
Infectious	11 (15.71)	25 (12.14)
Trauma	1 (1.42)	22 (10.68)
Tumor	3 (4.29)	3 (1.46)
Hemorrhage/coagulopathy	3 (4.29)	11 (5.34)
Urinary	3 (4.29)	9 (4.37)
Other	3 (4.29)	11 (5.33)
Sedation medications, n (%)	46 (65.70)	99 (48.05)	0.031*
Vasopressors, n (%)	34 (48.57)	49 (23.79)	0.001*
Corticosteroids, n (%)	31 (44.3)	67 (32.52)	0.103
Invasive mechanical ventilation, n (%)	39 (55.71)	60 (29.12)	0.001*
Continuous renal replacement therapy, n (%)	19 (27.1)	35 (16.99)	0.077
PELOD 2 score, median (IQR)	6.12 (2.24–9.07)	5.12 (2.22–6.13)	0.246
First PICU length of stay in weeks, n (%) 0.001*
<2	30 (42.86)	144 (69.90)
≥ 2	40 (57.14)	62 (30.10)
FSS at discharge, n (%)			0.069
Normal function	42 (60)	165 (80.10)
Mild dysfunction	13 (18.57)	20 (9.71)
Moderate dysfunction	7 (10)	10 (4.85)
Severe dysfunction	7 (10)	9 (4.37)
Very severe dysfunction	1 (1.4)	2 (0.97)

IQR, interquartile range; PELOD 2 score, Pediatric Logistic Organ Dysfunction 2 score; FSS, Functional Status Scale.

*Significant risk factor in the multivariable analysis (p < 0.05).