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World J Psychiatry. Nov 19, 2025; 15(11): 110648
Published online Nov 19, 2025. doi: 10.5498/wjp.v15.i11.110648
Association between childhood maltreatment with subthreshold depressive symptoms and major depressive disorder in young and middle-aged adults
Jing-Man Shi, Yu-Hua Liao, Yan-Zhi Li, Gia Han Le, Roger S McIntyre, Wei-Hong Zhang, Ines Keygnaert, Wan-Xin Wang, Lan Guo, Hui-Min Zhang, Cai-Hong Gao, Yan Chen, Xue Han, Ci-Yong Lu
Jing-Man Shi, Yan-Zhi Li, Wan-Xin Wang, Lan Guo, Ci-Yong Lu, Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
Jing-Man Shi, Wei-Hong Zhang, Ines Keygnaert, International Centre for Reproductive Health (ICRH), Department of Public Health and Primary Care, Faculty of Medicine and Health Sciences, Ghent University, Ghent 9000, Belgium
Yu-Hua Liao, Hui-Min Zhang, Cai-Hong Gao, Yan Chen, Xue Han, Department of Psychiatry, Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen 518054, Guangdong Province, China
Gia Han Le, Institute of Medical Science, University of Toronto, Toronto M5S 3H2, Canada
Gia Han Le, Roger S McIntyre, Department of Pharmacology and Toxicology, University of Toronto, Toronto M5S 3H2, Canada
Roger S McIntyre, Department of Psychiatry, University of Toronto, Toronto M5S 1A1, Canada
Wei-Hong Zhang, School of Public Health, Université libre de Bruxelles (ULB), Bruxelles 1050, Belgium
Co-first authors: Jing-Man Shi and Yu-Hua Liao.
Co-corresponding authors: Xue Han and Ci-Yong Lu.
Author contributions: Shi JM conceptualized the study, visualized the data, curated the data, performed formal analysis, and wrote the original draft; Liao YH and Li YZ conceptualized the study, curated the data, performed formal analysis, and developed the methodology; Wang WX, Guo L, Zhang HM, Chen Y, and Gao CH managed the project and performed the investigation; Le GH, McIntyre RS, Zhang WH, and Keygnaert I developed the methodology and reviewed and edited the manuscript; Han X and Lu CY conceptualized the study, acquired funding, performed the investigation, developed the methodology, managed the project, provided resources, visualized the data, and supervised the study. Shi JM and Liao YH contributed equally to this work as co-first authors. This study was jointly led by Professor Lu CY of Sun Yat-sen University and Han X from Shenzhen Nanshan Center for Chronic Disease Control. The two corresponding authors contributed complementary expertise that was both essential and non-overlapping in the execution of this project. Professor Lu CY was responsible for the overall study conceptualization, methodological design, and academic supervision. He played a central role in shaping the theoretical framework and ensuring the scientific rigor of the research. Han X, on the other hand, led the fieldwork and project implementation on the ground. She coordinated participant recruitment, managed on-site data collection, and maintained collaboration with local primary care institutions. Her leadership was critical to ensuring data quality and successful execution within community-based settings. Given the nature of this collaborative structure-combining academic leadership with field-based operational oversight-we believe that co-corresponding authorship accurately reflects the dual-core contributions of both individuals.
Supported by National Natural Science Foundation of China, No. 82373660 and No. 81761128030; Sanming Project of Medicine in Shenzhen Nanshan, No. 11; and the China Scholarship Council.
Institutional review board statement: This study was approved by the Institutional Review Board and Ethics Committee of Sun Yat-sen University School of Public Health (Ethical code: L2017044) and adhered to the principles of the Declaration of Helsinki.
Informed consent statement: Informed consent was obtained from all participants.
Conflict-of-interest statement: Dr. Roger S. McIntyre has received research grant support from CIHR/GACD/National Natural Science Foundation of China (NSFC) and the Milken Institute; speaker/consultation fees from Lundbeck, Janssen, Alkermes, Neumora Therapeutics, Boehringer Ingelheim, Sage, Biogen, Mitsubishi Tanabe, Purdue, Pfizer, Otsuka, Takeda, Neurocrine, Neurawell, Sunovion, Bausch Health, Axsome, Novo Nordisk, Kris, Sanofi, Eisai, Intra-Cellular, NewBridge Pharmaceuticals, Viatris, Abbvie, Atai Life Sciences. Dr. Roger S. McIntyre is a CEO of Braxia Scientific Corp.
STROBE statement: The authors have read the STROBE Statement-checklist of items, and the manuscript was prepared and revised according to the STROBE Statement-checklist of items.
Data sharing statement: The datasets used and/or analyzed in the present study can be obtained from the corresponding author upon reasonable request.
Open Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Ci-Yong Lu, MD, PhD, Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, No. 74 Zhongshan Road 2, Guangzhou 510080, Guangdong Province, China. luciyong@mail.sysu.edu.cn
Received: June 18, 2025
Revised: August 2, 2025
Accepted: September 1, 2025
Published online: November 19, 2025
Processing time: 139 Days and 18 Hours
Abstract
BACKGROUND

Childhood maltreatment has a potentially lasting influence on subthreshold depressive symptoms (SDS) and major depressive disorder (MDD). This study aimed to explore the association of childhood maltreatment with MDD and SDS, focusing on the differences between young and middle-aged adults.

AIM

To examine the associations among childhood maltreatment, SDS, and MDD in young and middle-aged adults.

METHODS

A total of 3209 adults were recruited from 34 primary healthcare settings. The Childhood Trauma Questionnaire-28 item Short Form was used to assess childhood maltreatment. The Patient Health Questionnaire-9 was used to assess SDS and the Mini-International Neuropsychiatric Interview depression module was used to assess MDD.

RESULTS

Childhood maltreatment was significantly associated with higher odds of developing SDS and MDD than in the non-depressed control group (P < 0.05). Childhood maltreatment significantly increased the risk of developing SDS in young adults but was not significantly associated with SDS in middle-aged adults (P = 0.055). Conversely, childhood maltreatment was significantly associated with MDD in both young (P < 0.001) and middle-aged adults (P < 0.05). In young adults, various types of childhood maltreatment were associated with MDD; however, only emotional abuse and neglect were significantly associated with MDD in middle-aged adults.

CONCLUSION

Our study revealed a strong association among childhood maltreatment, SDS, and MDD across age groups, highlighting the impact of emotional abuse and need for trauma-informed depression care.

Keywords: Subthreshold depressive symptoms; Major depressive disorder; Childhood maltreatment; Adults

Core Tip: This study investigates the association between childhood maltreatment and both subthreshold depressive symptoms (SDS) and major depressive disorder (MDD) in young and middle-aged adults. Our findings reveal that emotional abuse and neglect significantly contribute to depression risk across age groups, with emotional neglect showing a particularly strong association. This study extends previous literature by differentiating between SDS and MDD and underscores the need for trauma-informed care in depression management. Early identification of childhood maltreatment is crucial for preventing depression in at-risk individuals.