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Eung Nam Kim 1 Article
Status and trends of medical expenditures for poisoning patients
Eung Nam Kim, Soyoung Jeon, Hye Sun Lee, Sung Phil Chung
J Korean Soc Clin Toxicol. 2023;21(1):24-31.   Published online June 30, 2023
DOI: https://doi.org/10.22537/jksct.2022.00017
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AbstractAbstract PDF
Purpose: The purpose of this study was to estimate the medical expenditures for poisoning patients in Korea using data from National Health Insurance and the Korea Health Panel Survey.
Methods
The operational definition of poisoning was the presence of Korean Standard Classification of Diseases codes from T36 to T65. The number of poisoning patients, the amount of legal copayments, and benefit and non-benefit costs were extracted from both databases. The frequency of emergency, inpatient, and outpatient treatment utilization by poisoning patients was determined, and medical expenses were calculated. Linear regression analyses were performed to investigate factors affecting the medical expenses of poisoning patients.
Results
The number of poisoning patients increased from 97,965 in 2011 to 147,984 persons in 2020. Medical expenses also increased by 74% from Korean won (KRW) 30.1 billion to KRW 52.3 billion, and benefit costs also increased by 79%. The average outpatient cost per person was KRW 67,660, and the inpatient cost was KRW 1,485,103. The average non-benefit medical expenses were KRW 80,298, accounting for about 16.2% of the total expenses. Multivariable analysis showed that the total expenditure was associated with economic status and disabilities.
Conclusion
The average medical expenditure per poisoning patient was KRW 534,302 in 2020, and poisoning-related costs gradually increased during the study period. Further research on the economic burden of poisoning should include indirect costs and reflect disease-adjusted life years.

JKSCT : Journal of The Korean Society of Clinical Toxicology