Table 3.

Adjusted odds ratios for predictor variables in hierarchical logistic models of PICU mortality and prolonged length of stay (> 15 days)

Variable	Mortality		Prolonged LOS
	OR (95% CI)	P value	OR (95% CI)	P value
Chronic conditions (reference is no chronic condition)
Cardiovascular
NCCC	0.71 (0.55–0.93)	0.013	1.55 (1.34–1,79)	<0.001
CCC	1.25 (1.05–1.48)	0.013	2.4 (2.2–2.7)	<0.001
Respiratory
NCCC	1.05 (0.77–1.42)	0.76	0.89 (0.73–1.08)	0.24
CCC	0.86 (0.69–1.08)	0.19	2 (1.77–2.3)	<0.001
Neuromuscular
NCCC	0.97 (0.65–1.45)	0.89	1.28 (1–1.62)	0.047
CCC	1.49 (1.28–1.74)	<0.001	1.72 (1.55–1.91)	<0.001
Congenital/genetic abnormality
NCCC	1.09 (0.73–1.63)	0.67	0.83 (0.65–1.06)	0.14
CCC	1.44 (1.13–1.84)	0.003	1.31 (1.13–1.52)	<0.001
Oncologic
NCCC	1.89 (0.94–3.8)	0.07	1.52 (0.99–2.3)	0.053
CCC	2.6 (2.2–3.2)	<0.001	2.1 (1.79–2.4)	<0.001
Metabolic/endocrinologic
NCCC	1.08 (0.43–2.7)	0.87	1.59 (0.99–2.7)	0.075
CCC	2.1 (1.74–2.6)	<0.001	1.66 (1.45–1.91)	<0.001
Renal
NCCC	0.95 (0.42–2.2)	0.91	0.91 (0.57–1.45)	0.69
CCC	1.88 (1.32–2.7)	<0.001	1.66 (1.31–2.1)	<0.001
Gastrointestinal
NCCC	0.83 (0.28–2.5)	0.75	1.79 (1.16–2.8)	0.008
CCC	1.2 (0.96–1.5)	0.11	1.76 (1.54–2)	<0.001
Hematologic/immunologic
NCCC	–	–	–	–
CCC	2.9 (2.4–3.6)	<0.001	1.71 (1.46–2)	<0.001
Other
NCCC	0.85 (0.7–1.03)	0.29	1.12 (0.94–1.35)	0.19
CCC	1.42 (0.79–2.6)	0.25	1.62 (1.09–2.4)	0.018
Age
0–3 months (reference)
3–24 months	0.85 (0.7–1.04)	0.11	0.61 (0.54–0.69)	<0.001
> 2 years	0.75 (0.62–0.9)	0.003	0.37 (0.33–0.42)	<0.001
Male gender	0.84 (0.74–0.95)	0.005	1.02 (0.94–1.11)	0.59
Trauma	1.5 (1.22–1.85)	<0.001	0.97 (0.82–1.15)	0.74
PIM2 score	2.6 (2.5–2.7)	<0.001	1.5 (1.47–1.54)	<0.001

CCC, complex chronic condition; LOS, length of stay; NCCC, non-complex chronic condition; OR, odds ratios; PIM, Pediatric Index of Mortality