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Am J Perinatol 2024; 41(06): 798-803
DOI: 10.1055/a-1788-6083
Original Article

Super-Utilizers of Inpatient Care in an Obstetrical Population: A Cross-Sectional Study

Kerri Keselowsky 
1   Division of General Obstetrics and Gynecology, Department of Obstetrics, Gynecology, and Reproductive Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
,
Todd Rosen 
2   Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
,
Ola Hadaya 
1   Division of General Obstetrics and Gynecology, Department of Obstetrics, Gynecology, and Reproductive Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
,
Shama Khan 
2   Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
,
Cande V. Ananth 
3   Division of Epidemiology and Biostatistics, Department of Obstetrics, Gynecology, and Reproductive Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
4   Cardiovascular Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
5   Environmental and Occupational Health Sciences Institute, Rutgers Robert Wood Johnson Medical School, Piscataway, New Jersey
6   Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, New Jersey
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Abstract

Objective The aim of the study is to estimate hospital charges (HC) and length of stay (LOS) for pregnancy and 6 weeks postpartum and to characterize the outliers who utilize a disproportionate share of health care resources.

Study Design We performed a cross-sectional study of 500 subjects at a tertiary center between 2012 and 2014. Subjects were included who had inpatient status and an ICD-9 code for pregnancy; those with an ICD-9 code for ectopic pregnancy were excluded. Data were collected 266 days prior to the estimated date of delivery (EDD) and up to 42 days post-delivery. Medical diagnoses, obstetrical details, demographics, HC, and LOS were collected. Super-utilizers (SUs) were selected as patients with total HC exceeding $75,000, those who incurred $75,000 or less were assigned to the typical utilizer (TU) group.

Results HC was positively skewed, with median's (interquartile range) of $151,143 (97,707–198,732) and $28,186 (19,292–38,943) among SUs and TUs, respectively. Despite the low proportion of SU patients (7%, n = 36), they accounted for 30% of charges. Similarly, SUs had longer LOS (16 vs. 3 days, p <0.05). They had earlier deliveries (34.5 vs. 38.5 weeks, p <0.05), higher cesarean section rates (69 vs. 35%, p <0.05), and more hysterectomies (8.3 vs. 0%, p <0.05). The most common complications in SUs were preterm labor (33.3 vs. 5.4%, p <0.05) and preterm premature rupture of membranes (25 vs. 3.9%, p< 0.05). The most common pre-existing condition in SUs was chronic hypertension (11.1 vs. 3%, p< 0.05).

Conclusion Although SUs comprise only 7% of the obstetrical population, they account for almost a third of the total HCs; in turn, SUs are at risk of adverse outcomes. Targeting this population can guide efforts to improve maternal health through prevention, research, and personalized care. SUs may have clustering at hospitals with higher levels of care and this topic warrants further investigation with state and national level data.

Key Points

  • Just 7% of pregnant patients accounted for 30% of hospital charges.

  • Super-utilizers had higher rates of preterm delivery, cesarean section, and hysterectomy.

  • The most common pre-existing medical condition in super-utilizers was chronic hypertension.

Keywords

super-utilizer - pregnancy - hospital charges - length of stay - health care spending


Publikationsverlauf

Eingereicht: 20. März 2021

Angenommen: 18. Februar 2022

Accepted Manuscript online:
04. März 2022

Artikel online veröffentlicht:
06. Mai 2022

© 2022. Thieme. All rights reserved.

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