Dae Jong Oh , Chaiho Jeong , Junhyung Kim , Eun Soo Kim , Kang-Seob Oh , Young Chul Shin , Dong-Won Shin , Sang-Won Jeon , Sung Joon Cho
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Insulin resistance was assessed using the homeostasis model assessment of insulin resistance (HOMA-IR). Incident depression was defined as having a Center for Epidemiologic Studies Depression Scale score of ≥16.</div></div><div><h3>Findings</h3><div>Participants (age = 36.1 ± 8.6 years, 54.1% male) were followed up for 4.8 ± 2.9 years. During the 1,124,268 person-years of follow-up duration, 38,801 cases of incident depression were identified. Multivariate Cox proportional hazards analysis revealed a positive dose-dependent association between HOMA-IR level and the risk of incident depression (hazard ratio [HR] for highest vs. lowest quartile = 1.15, 95% confidence interval [CI] = 1.11–1.19). This association was particularly strong in younger adults under 40 years and in individuals with euglycemia, overweight, and low muscle-to-fat ratio.</div></div><div><h3>Interpretation</h3><div>Insulin resistance may be a modifiable risk factor for depression, underscoring the importance of early screening and management of insulin resistance to potentially reduce the burden of depression, especially among at-risk subgroups.</div></div><div><h3>Funding</h3><div>None.</div></div>","PeriodicalId":22792,"journal":{"name":"The Lancet Regional Health: Western Pacific","volume":"62 ","pages":"Article 101672"},"PeriodicalIF":8.1000,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Insulin resistance and the risk of incident depression: the role of age, glycemic status, and adiposity in a prospective cohort study\",\"authors\":\"Dae Jong Oh , Chaiho Jeong , Junhyung Kim , Eun Soo Kim , Kang-Seob Oh , Young Chul Shin , Dong-Won Shin , Sang-Won Jeon , Sung Joon Cho\",\"doi\":\"10.1016/j.lanwpc.2025.101672\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Background</h3><div>Despite emerging evidence, the causal relationship between insulin resistance and depression remains controversial. This study aimed to investigate whether insulin resistance is associated with increased risk of incident depression and whether the association is affected by potential moderators.</div></div><div><h3>Methods</h3><div>This multi-centered prospective cohort study analyzed health screening data from 233,452 Korean adults participating in the Kangbuk Samsung Health Study from 2011 to 2022. At baseline, all participants indicated no major psychiatric or neurologic disorders and had not used antidepressant or diabetes medications. Insulin resistance was assessed using the homeostasis model assessment of insulin resistance (HOMA-IR). Incident depression was defined as having a Center for Epidemiologic Studies Depression Scale score of ≥16.</div></div><div><h3>Findings</h3><div>Participants (age = 36.1 ± 8.6 years, 54.1% male) were followed up for 4.8 ± 2.9 years. During the 1,124,268 person-years of follow-up duration, 38,801 cases of incident depression were identified. Multivariate Cox proportional hazards analysis revealed a positive dose-dependent association between HOMA-IR level and the risk of incident depression (hazard ratio [HR] for highest vs. lowest quartile = 1.15, 95% confidence interval [CI] = 1.11–1.19). 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Insulin resistance and the risk of incident depression: the role of age, glycemic status, and adiposity in a prospective cohort study
Background
Despite emerging evidence, the causal relationship between insulin resistance and depression remains controversial. This study aimed to investigate whether insulin resistance is associated with increased risk of incident depression and whether the association is affected by potential moderators.
Methods
This multi-centered prospective cohort study analyzed health screening data from 233,452 Korean adults participating in the Kangbuk Samsung Health Study from 2011 to 2022. At baseline, all participants indicated no major psychiatric or neurologic disorders and had not used antidepressant or diabetes medications. Insulin resistance was assessed using the homeostasis model assessment of insulin resistance (HOMA-IR). Incident depression was defined as having a Center for Epidemiologic Studies Depression Scale score of ≥16.
Findings
Participants (age = 36.1 ± 8.6 years, 54.1% male) were followed up for 4.8 ± 2.9 years. During the 1,124,268 person-years of follow-up duration, 38,801 cases of incident depression were identified. Multivariate Cox proportional hazards analysis revealed a positive dose-dependent association between HOMA-IR level and the risk of incident depression (hazard ratio [HR] for highest vs. lowest quartile = 1.15, 95% confidence interval [CI] = 1.11–1.19). This association was particularly strong in younger adults under 40 years and in individuals with euglycemia, overweight, and low muscle-to-fat ratio.
Interpretation
Insulin resistance may be a modifiable risk factor for depression, underscoring the importance of early screening and management of insulin resistance to potentially reduce the burden of depression, especially among at-risk subgroups.
期刊介绍:
The Lancet Regional Health – Western Pacific, a gold open access journal, is an integral part of The Lancet's global initiative advocating for healthcare quality and access worldwide. It aims to advance clinical practice and health policy in the Western Pacific region, contributing to enhanced health outcomes. The journal publishes high-quality original research shedding light on clinical practice and health policy in the region. It also includes reviews, commentaries, and opinion pieces covering diverse regional health topics, such as infectious diseases, non-communicable diseases, child and adolescent health, maternal and reproductive health, aging health, mental health, the health workforce and systems, and health policy.