Evidence map›Paper›PMID 42353949›Full record

ArticleChildren (Basel, Switzerland)2026

Cumulative Burden of Neonatal Morbidities and Its Impact on Medical Costs and Length of Stay in Preterm Infants: A Nationwide Study in Korea.

Seung Hwan Baek, Young Mi Park, Teahyen Cha, So Jin Yoon, Jung Ho Han, Jeong Eun Shin, Ho Seon Eun, Min Soo Park, Joohee Lim, Soon Min Lee

Abstract read
In one paragraph

Article in Children (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Seung Hwan BaekDepartment of Pediatrics, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
Young Mi ParkDepartment of Pediatrics, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.ORCID 0000-0003-1693-7300
Teahyen ChaDepartment of Pediatrics, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.ORCID 0000-0002-6877-7516
So Jin YoonDepartment of Pediatrics, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.ORCID 0000-0002-7028-7217
Jung Ho HanDepartment of Pediatrics, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
Jeong Eun ShinDepartment of Pediatrics, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.ORCID 0000-0002-4376-8541
Ho Seon EunDepartment of Pediatrics, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
Min Soo ParkDepartment of Pediatrics, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.ORCID 0000-0002-4395-9938
Joohee LimDepartment of Pediatrics, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.ORCID 0000-0003-4376-6607
Soon Min LeeDepartment of Pediatrics, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.ORCID 0000-0003-0174-1065

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNeonatal morbidities are major determinants of clinical outcomes and healthcare utilization in preterm infants. However, population-level evidence quantifying the cumulative contribution of neonatal morbidities to neonatal intensive care unit (NICU) length of stay (LOS) and medical costs remains limited.

methodsWe conducted a nationwide retrospective cohort study using the Korean Health Insurance Review and Assessment Service database. Preterm infants admitted to NICUs between 2020 and 2023 were identified. After exclusions, 30,034 infants with complete birth weight data and 31,240 with complete gestational age data were included. Major neonatal morbidities-including bronchopulmonary dysplasia (BPD), patent ductus arteriosus (PDA), sepsis, intraventricular hemorrhage (IVH), retinopathy of prematurity (ROP), necrotizing enterocolitis (NEC), and periventricular leukomalacia (PVL)-were identified using ICD-10 odes. Associations of individual morbidities and cumulative morbidity burden with NICU LOS and medical costs were evaluated using multivariable regression and generalized linear mixed models.

resultsMean NICU LOS was 26.5 days, and mean total medical cost was 41.9 million KRW. All major morbidities were associated with prolonged LOS and increased costs. BPD showed the strongest association with LOS, whereas NEC and sepsis were associated with the highest costs. NICU LOS and medical costs increased in a stepwise manner with increasing numbers of morbidities; each additional morbidity was associated with an 8.0-day increase in LOS and a 32.5 million KRW increase in medical costs (both

conclusionsGreater cumulative morbidity burden was associated with prolonged hospitalization and increased healthcare costs in preterm infants.

Indexed as

comorbidityhealth care costsinfantintensive care unitslength of stay (LOS)neonatalpremature

Identifiers

PMID42353949
PMCPMC13297132

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.