What are the Factors Associated with Suicide in Chinese Adults?

Research Paper Title

Factors associated with suicide risk among Chinese adults: A prospective cohort study of 0.5 million individuals.

Background

Suicide is a leading cause of death in China and accounts for about one-sixth of all suicides worldwide. The objective of this study was to examine the recent distribution of suicide and risk factors for death by suicide. Identifying underlying risk factors could benefit development of evidence-based prevention and intervention programmes.

Methods

The researchers conducted a prospective study, the China Kadoorie Biobank, of 512,715 individuals (41% men, mean age 52 years) from 10 (5 urban, 5 rural) areas which are diverse across China in geographic locations, social economic developmental stages, and prevalence of disease patterns. After the baseline measurements of risk factors during 2004 to 2008, participants were followed up for suicide outcomes including suicide and possible suicide deaths. Risk factors, such as sociodemographic factors and physical and mental health status, were assessed by semi-structured interviews and self-report questionnaires.

Suicide and possible suicide deaths were identified through linkage to the local death registries using ICD-10 codes. The researchers conducted Cox regression to calculate hazard ratios (HRs) for suicide and for possible suicide in sensitivity analyses.

Results

During an average follow-up period of 9.9 years, 520 (101 per 100,000) people died from suicide (51.3% male), and 79.8% of them lived in rural areas. Sociodemographic factors associated with increased suicide risk were male gender (adjusted hazard ratios [aHR] = 1.6 [95% CI 1.4 to 2.0], p < 0.001), older age (1.3 [1.2 to 1.5] by each 10-yr increase, p < 0.001), rural residence (2.6 [2.1 to 3.3], p < 0.001), and single status (1.7 [1.4 to 2.2], p < 0.001). Increased hazards were found for family-related stressful life events (aHR = 1.8 [1.2 to 1.9], p < 0.001) and for major physical illnesses (1.5 [1.3 to 1.9], p < 0.001). There were strong associations of suicide with a history of lifetime mental disorders (aHR = 9.6 [5.9 to 15.6], p < 0.001) and lifetime schizophrenia-spectrum disorders (11.0 [7.1 to 17.0], p < 0.001). Links between suicide risk and depressive disorders (aHR = 2.6 [1.4 to 4.8], p = 0.002) and generalized anxiety disorders (2.6 [1.0 to 7.1], p = 0.056) in the last 12 months, and sleep disorders (1.4 [1.2 to 1.7], p < 0.001) in the past month were also found.

All HRs were adjusted for sociodemographic factors including gender, age, residence, single status, education, and income. The associations with possible suicide deaths were mostly similar to those with suicide deaths, although there was no clear link between possible suicide deaths and psychiatric factors such as depression and generalised anxiety disorders. A limitation of the study is that there is likely underreporting of mental disorders due to the use of self-report information for some diagnostic categories.

Conclusions

In this study, the researchers observed that a range of sociodemographic, lifestyle, stressful life events, physical, and mental health factors were associated with suicide in China. High-risk groups identified were elderly men in rural settings and individuals with mental disorders. These findings could form the basis of targeted approaches to reduce suicide mortality in China.

Reference

Yu, R., Chen, Y., Li, L., Chen, J., Guo, Y., Bian, Z., Lv., Yu, C., Xie., Huang, D., Chen, Z. & Fazel, S. (2021) Factors associated with suicide risk among Chinese adults: A prospective cohort study of 0.5 million individuals. PLoS Med. doi: 10.1371/journal.pmed.1003545. eCollection 2021 Mar.

Book: Encyclopedia of Mental Health

Book Title:

Encyclopedia of Mental Health.

Author(s): Howard S. Friedman.

Year: 2015.

Edition: Second (2nd).

Publisher: Academic Press.

Type(s): Hardcover and Kindle.

Synopsis:

The Encyclopedia of Mental Health, Second Edition, tackles the subject of mental health, arguably one of the biggest issues facing modern society. The book presents a comprehensive overview of the many genetic, neurological, social, and psychological factors that affect mental health, also describing the impact of mental health on the individual and society, and illustrating the factors that aid positive mental health.

The book contains 245 peer-reviewed articles written by more than 250 expert authors and provides essential material on assessment, theories of personality, specific disorders, therapies, forensic issues, ethics, and cross-cultural and sociological aspects. Both professionals and libraries will find this timely work indispensable.

  • Provides fully up-to-date descriptions of the neurological, social, genetic, and psychological factors that affect the individual and society.
  • Contains more than 240 articles written by domain experts in the field.
  • Written in an accessible style using terms that an educated layperson can understand.
  • Of interest to public as well as research libraries with coverage of many important topics, including marital health, divorce, couples therapy, fathers, child custody, day care and day care providers, extended families, and family therapy.

What are the Psychological Factors Associated with Financial Hardship & Mental Health?

Research Paper Title

Psychological factors associated with financial hardship and mental health: A systematic review.

Background

A review of the literature investigating the role of psychological factors in the relationship between financial hardship and mental health was completed.

Methods

The review sought to identify which factors have been most consistently and reliably indicated, and the mechanisms by which these factors are proposed to contribute to the association between hardship and mental health.

Results

Although the review identified that a broad variety of factors have been investigated, skills related to personal agency, self-esteem and coping were most frequently and reliably associated with the relationship between financial hardship and mental health outcomes.

Just over half of the studies reviewed concluded that the psychological factor investigated was either eroded by financial hardship, increasing vulnerability to mental health difficulties, or protected mental health by remaining intact despite the effects of financial hardship.

The remaining studies found no such effect or did not analyse their data in a manner in which a mechanism of action could be identified.

Conclusions

The methodological quality of the research included in the review was variable.

The valid and reliable measurement of financial hardship, and conclusions regarding causation due to the use of predominantly cross-sectional design were areas of particular weakness.

Reference

Frankham, C., Richardson, T. & Maguire, N. (2020) Psychological factors associated with financial hardship and mental health: A systematic review. Clinical Psychology Review. doi: 10.1016/j.cpr.2020.101832. Epub 2020 Feb 11.