Evidence map›Paper›PMID 41462134›Full record

ArticleBMC public health2025

Identifying determinants of unmet healthcare needs in South Korea: a comparison of machine learning approaches for precision public health.

Young Gyu Kwon, Seokmin Ji, Dongwoo Huh, Mankyu Choi, Munjae Lee

Abstract readComparative Study
In one paragraph

Article in BMC public health, 2025. 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. Article
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

5 authors.

Young Gyu KwonCenter for Chung-Ang Medical Education Resource Allocation (CAMERA), College of Medicine, Chung-Ang University, Dongjak-gu, Seoul, Republic of Korea.ORCID http://orcid.org/0000-0003-3848-7259
Seokmin JiDepartment of Health Policy & Management, College of Health Science, Korea University, Seongbuk-gu, Seoul, Republic of Korea.
Dongwoo HuhDepartment of Intelligent Information and Communications Engineering, College of Future Convergence, Namseoul University, Seobuk-gu, Cheonan, Republic of Korea.
Mankyu ChoiDepartment of Health Policy & Management, College of Health Science, Korea University, Seongbuk-gu, Seoul, Republic of Korea. mkchoi@korea.ac.kr.
Munjae LeeDepartment of Medical Science, Ajou University School of Medicine, Gyeonggi-do, Suwon, Republic of Korea. emunjae@ajou.ac.kr.ORCID http://orcid.org/0000-0002-9781-4187

Funding

The Ministry of Education of the Republic of Korea and the National Research Foundation of Korea NRF-2023S1A3A2A05095298
6 · The paper itself

Abstract

backgroundDespite a comprehensive national health insurance system in South Korea, achieving universal healthcare access remains challenging. Unmet healthcare needs reflect a confluence of individual-level barriers and broader structural constraints. This study aimed to identify and compare the most influential factors determining unmet healthcare needs using multiple machine learning techniques.

methodsThis study included 1,489,560 adults aged ≥ 20 who participated in the Community Health Survey between 2016 and 2022. The variables were classified into predisposing, enabling, and need factors according to Andersen’s behavioral model. Five machine learning algorithms—Decision Tree, Random Forest, XGBoost, LightGBM, and CatBoost— were used to predict unmet healthcare needs. The model performance was evaluated using accuracy, precision, recall, and F1-score metrics alongside confusion matrices, with special emphasis on minimizing false negatives.

resultsLightGBM exhibited the highest accuracy (0.9222) with superior recall (0.7802) and F1-score (0.7772), demonstrating optimal performance in identifying individuals with unmet healthcare needs. Age, household income, subjective health status, frequency of alcohol consumption, education level, employment status, and walking frequency were found to be the most influential predictors of unmet healthcare needs.

conclusionsThe findings provide data-driven insights that enable policymakers to develop tailored interventions addressing the needs of vulnerable populations. This machine learning framework facilitates precision public health by reducing unmet healthcare needs, enhancing healthcare equity, and optimizing healthcare resource allocation.

Indexed as

Health Services Needs and DemandMachine LearningPublic HealthAdultAgedBoosting Machine Learning AlgorithmsFemaleHealth SurveysHumansMaleMiddle AgedPredictive Learning ModelsRandom ForestRepublic of KoreaYoung AdultAndersen’s behavioral modelHealth disparitiesMachine learningPrecision public healthPublic health policyUnmet healthcare needs

Identifiers

PMID41462134
PMCPMC12874847

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.