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. 2020 Sep;21(9):e842-e847.
doi: 10.1097/PCC.0000000000002507.

Factors That Contribute to Cost Differences Based on ICU of Admission in Neonates Undergoing Congenital Heart Surgery: A Novel Decomposition Analysis

Joyce T Johnson  1 , Kirsen L Sullivan  2 , Richard E Nelson  3 , Xiaoming Sheng  4 , Tom H Greene  4 , David K Bailly  5 , Aaron W Eckhauser  6 , Bradley S Marino  1 , L LuAnn Minich  7 , Nelangi M Pinto  7
Affiliations

Factors That Contribute to Cost Differences Based on ICU of Admission in Neonates Undergoing Congenital Heart Surgery: A Novel Decomposition Analysis

Joyce T Johnson et al. Pediatr Crit Care Med. 2020 Sep.

Erratum in

Abstract

Objectives: We leveraged decomposition analysis, commonly used in labor economics, to understand determinants of cost differences related to location of admission in children undergoing neonatal congenital heart surgery.

Design: A retrospective cohort study.

Setting: Pediatric Health Information Systems database.

Patients: Neonates (<30 d old) undergoing their index congenital heart surgery between 2004 and 2013.

Measurements and main results: A decomposition analysis with bootstrapping determined characteristic (explainable by differing covariate levels) and structural effects (if covariates are held constant) related to cost differences. Covariates included center volume, age at admission, prematurity, sex, race, genetic or major noncardiac abnormality, Risk Adjustment for Congenital Heart Surgery-1 score, payor, admission year, cardiac arrest, infection, and delayed sternal closure.Of 19,984 infants included (10,491 [52%] to cardiac ICU/PICU and 9,493 [48%] to neonatal ICU), admission to the neonatal ICU had overall higher average costs ($24,959 ± $3,260; p < 0.001) versus cardiac ICU/PICU admission. Characteristic effects accounted for higher costs in the neonatal ICU ($28,958 ± $2,044; p < 0.001). Differing levels of prematurity, genetic syndromes, hospital volume, age at admission, and infection contributed to higher neonatal ICU costs, with infection rate providing the most significant contribution ($13,581; p < 0.001). Aggregate structural effects were not associated with cost differences for those admitted to the neonatal ICU versus cardiac ICU/PICU (p = 0.1). Individually, prematurity and age at admission were associated with higher costs due to structural effects for infants admitted to the neonatal ICU versus cardiac ICU/PICU.

Conclusions: The difference in cost between neonatal ICU and cardiac ICU/PICU admissions is largely driven by differing prevalence of risk factors between these units. Infection rate was a modifiable factor that accounted for the largest difference in costs between admitting units.

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Figures

Figure 1:
Figure 1:
Figure displaying overall, characteristic and structural differences between admissions to the NICU and CICU/PICU. (NICU admission referent)
See this image and copyright information in PMC

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