Evidence map›Paper›PMID 42425542›Full record

ArticleJournal of gastroenterology and hepatology2026

Smoking and Risk of Hepatic Steatosis Within the MASLD Spectrum in Korean Young Adults.

Yongho Jee, Sun Ju Lee, Ho Soo Chun, Hyun-Young Shin

Abstract read
In one paragraph

Article in Journal of gastroenterology and hepatology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

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0 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Yongho JeeAdvanced Biomedical Research Institute, Ewha Womans University Seoul Hospital, Seoul, Republic of Korea.ORCID https://orcid.org/0000-0003-0365-8302
Sun Ju LeeDepartment of Big Data Strategies, National Health Insurance Service (NHIS), Wonju, Republic of Korea.
Ho Soo ChunDepartment of Internal Medicine, Ewha Womans University College of Medicine, Seoul, Republic of Korea.
Hyun-Young ShinDepartment of Family Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.ORCID https://orcid.org/0000-0001-7261-3365

Funding

Ministry of Science and ICT, South Korea RS-2023-00210888National Research Foundation of Korea
6 · The paper itself

Abstract

BACKGROUND AND

aimsMetabolic dysfunction-associated steatotic liver disease (MASLD) is an increasing public health concern, particularly among young adults. Although smoking has been implicated in hepatic steatosis, large-scale longitudinal evidence remains limited.

methodsWe analyzed data from the Korean National Health Insurance Service, including 3 496 144 adults aged 20-39 years who underwent health examinations between 2004 and 2007 and were followed through 2022. Hepatic steatosis was assessed using the Fatty Liver Index (FLI), a validated surrogate marker, and categorized as < 30, 30-59, or ≥ 60. Smoking exposure was evaluated at baseline according to smoking amount, duration, and pack-years. Cox proportional hazards models were used to estimate adjusted hazard ratios (HRs) and 95% confidence intervals (CIs).

resultsSmoking was associated with an increased risk of incident FLI-defined hepatic steatosis across multiple exposure metrics. Among men, smoking ≥ 20 cigarettes/day was associated with the highest risk of FLI ≥ 60 (HR 1.41, 95% CI 1.40-1.43), whereas 10-19 years of smoking was associated with an HR of 1.15 (95% CI 1.14-1.15). Among women, 10-19 years of smoking was associated with a 49% higher risk of FLI ≥ 60 (HR 1.49, 95% CI 1.43-1.56). Associations were generally stronger among participants with BMI < 25 kg/m

conclusionsSmoking was independently associated with an increased risk of FLI-defined hepatic steatosis in young adults. These findings support smoking prevention and cessation strategies as potential measures to reduce early-onset steatotic liver disease.

Indexed as

Fatty LiverSmokingAdultFemaleHumansIncidenceLongitudinal StudiesMaleProportional Hazards ModelsRepublic of KoreaRiskRisk FactorsSex FactorsTime FactorsYoung Adultcigarette smokingFatty Liver Indexhepatic steatosisMASLD spectrumnationwide cohort studyyoung adults

Identifiers

PMID42425542
PMCPMC13432273

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