Table 3.

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

First PICU admission of characteristics	Early readmission (N = 33)	Control group (N = 206)	p
Age (y), median (IQR)	1 (0.25–2)	1.25 (0.55–4.62)	0.046*
Male sex, n (%)	17 (51.52)	111 (53.88)	0.726
Weight (kg), median (IQR)	10.7 (5.82–10.45)	11.65 (7.59–18.25)	0.049*
With chronic conditions, n (%)	11 (33.33)	32 (15.53)	<0.001*
Strongkids scores on admission, median (IQR)	2 (2–3)	2 (1–2)	<0.001*
Admission primary diagnostic category, n (%)			0.141
Respiratory	11 (33.33)	89 (43.20)
Neurologic	6 (18.18)	19 (9.22)
Cardiovascular	3 (9.09)	17 (8.25)
Infectious	4 (12.12)	25 (12.14)
Trauma	6 (18.18)	22 (10.68)
Tumor	2 (6.06)	3 (1.46)
Hemorrhage/Coagulopathy	0	11 (5.34)
Urinary	0	9 (4.37)
Other	1 (3.04)	11 (5.33)
Sedation medications, n (%)	15 (45.45)	99 (48.05)	0.522
Vasopressors, n (%)	14 (42.42)	49 (23.79)	0.010*
Corticosteroids, n (%)	13 (39.39)	67 (32.52)	0.443
Invasive mechanical ventilation, n (%)	15 (45.45)	60 (29.12)	0.110
Continuous Renal Replacement Therapy, n (%)	6 (18.18)	35 (16.99)	0.800
PELOD 2 score, median (IQR)	5.99 (1.26–8.25)	5.12 (2.22–6.13)	0.158
First PICU length of stay in weeks, n (%)			0.033*
<2	16 (48.48)	144 (69.90)
≥ 2	17 (51.52)	62 (30.10)
FSS at discharge, n (%)			0.144
Normal function	22 (66.67)	165 (80.10)
Mild dysfunction	7 (21.21)	20 (9.71)
Moderate dysfunction	3 (9.09)	10 (4.85)
Severe dysfunction	1 (3.03)	9 (4.37)
Very severe dysfunction	0	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).