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Original article Application of joint latent space item response model to clustering stressful life events and Beck Depression Inventory II: results from Korean epidemiological survey data
Hyun Joo Kim1,2orcid , Ye Jin Jeon3orcid , Sung Ha Park4, Dae Jung Kim5, Hyeon Chang Kim6orcid , Ick Hoon Jin1,2orcid , Sun Jae Jung3,6,7orcid
Epidemiol Health 2022;e2022093
DOI: https://doi.org/10.4178/epih.e2022093 [Accepted]
Published online: October 24, 2022
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1Department of Applied Statistics, Yonsei University, Seoul, Korea
2Department of Statistics and Data Science, Yonsei University, Seoul, Korea
3Department of Public Health, Graduate School, Yonsei University, Seoul, Korea
4Division of Cardiology, Severance Cardiovascular Hospital and Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea
5Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Korea
6Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea
7Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
Corresponding author:  Sun Jae Jung,
Email: sunjaejung@yuhs.ac
Received: 28 June 2022   • Revised: 19 October 2022   • Accepted: 24 October 2022
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Abstract

Objectives
According to previous findings, stressful life events (SLEs), and its subtypes are associated with depressive symptoms. However, few studies have explored potential models for events and incidental symptoms.
Methods
The participants (men: 3,966 men; women: 5,709) were recruited from the Cardiovascular and Metabolic Diseases Etiology Research Center. SLEs were measured using a 47-item life experiences survey (LES) with a standardized protocol. Depressive symptoms were assessed using the Beck Depression Inventory II (BDI-II). The joint latent space item response models were performed by sex and age group (under 50 vs. 50+ years).
Results
Among the LESs’ item, death/illness of close relatives, legal/sexual difficulties, family relationships, or social relationships shared latent positions with major depressive symptoms regardless of sex or age. We also observed a sex-specific domain; occupational and family-related items.
Conclusions
By projecting LES and BDI-II into the same interaction map in each subgroup, we could specify the association between specific LES and depressive symptoms.

Epidemiol Health : Epidemiology and Health
© Korean Society of Epidemiology.