Exploring the unique and cumulative effects of individual-level and social determinants on suicidal ideation trajectories during health and environmental crises – a longitudinal study of Australians
Bibliographic Data
| ID | 15359641 |
|---|---|
| Authors | Quincy J J Wong (0000-0001-9393-4301, Western Sydney University), Sandersan Onie (0000-0003-2147-8102, Black Dog Institute), Lauren McGillivray (0000-0001-9022-0274, Black Dog Institute), Alexander Burnett (0000-0002-8313-7883, Black Dog Institute), Adam Theobald (0000-0002-7666-4992, Black Dog Institute), Fiona Shand (0000-0001-6765-228X, Black Dog Institute), Michelle Torok (0000-0003-3741-8075, Black Dog Institute, corresponding author), Mark Larsen (0000-0002-0272-2053), Mark E Larsen (Black Dog Institute) |
| Year | 2026 |
| Volume | 26 |
| Issue | 1 |
| Publication date | 2026-03-02 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | BMC Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1471-2458 • E-ISSN: 1471-2458 |
| Publisher | BioMed Central (PUBLISHER • GB) |
| DOI | 10.1186/s12889-026-26816-4 |
| PMID | 41772538 |
| OpenAlex | W7133245479 |
| Language | EN |
| References cited | 35 |
There is a paucity of research that has examined how significant health, social, and environmental crises impact suicidal ideation, particularly where these events co-occur and have potentially synergistic adverse effects. The aim of this study was to identify the unique and cumulative contributions of mental health, social, and environmental risks on 12-month trajectories of suicidal ideation. A community-based sample of 1928 Australians (aged ≥ 16 years) completed online surveys measuring mental health, social, and environmental risk factors, and suicidal ideation at baseline, and the suicidal ideation measure was repeated at four follow-up timepoints. Growth mixture modelling identified suicidal ideation trajectories and multinomial logistic regression analyses examined associations between baseline risk variables and the trajectories. Analyses showed five different trajectories of suicidal ideation (one stable low ideation trajectory; four vulnerable trajectories). A different set of risk factor variables predicted each vulnerable trajectory relative to the low trajectory. A cumulative risk index representing the combined effects of the mental health, social, and environmental risk factors also predicted each vulnerable trajectory relative to the low trajectory. While adversity resulting from exposure to health and environmental crises was associated with suicidal ideation, the heterogeneity in how patterns of mental health, social, and environmental factors related to trajectory classes suggests that people experience these events differently. A cumulative risk index may be a potentially useful indicator of risk
Biostatistics · Injury prevention · Longitudinal study · Mental health · Multinomial logistic regression · Poison control · Suicidal ideation · Suicide prevention · Human Factors and Ergonomics · Mental Health Research Topics · Posttraumatic Stress Disorder Research · Suicide and Self-Harm Studies
Applied Multiple Regression/Correlation Analysis for the Behavioral Sciences
The Suicidal Ideation Attributes Scale ( Sidas )
Suicide Attempt as a Risk Factor for Completed Suicide
Group-Based Trajectory Modeling in Clinical Research
Alcohol and other substance use during the Covid-19 pandemic
Mental health and well-being during the Covid-19 pandemic
Family violence and Covid‐19
Suicide, Suicide Attempts, and Suicidal Ideation
Suicidal thoughts and behaviors and social isolation
A Brief Measure for Assessing Generalized Anxiety Disorder
A Short Scale for Measuring Loneliness in Large Surveys
The PHQ-8 as a measure of current depression in the general population
Auxiliary Variables in Mixture Modeling
The Role of Unemployment, Financial Hardship, and Economic Recession on Suicidal Behaviors and Interventions to Mitigate Their Impact
Covid-19 outbreak
Prevalence and Sociodemographic Predictors of Mental Health in a Representative Sample of Young Adults from Germany, Israel, Poland, and Slovenia
Domestic violence during the Covid-19 pandemic - Evidence from a systematic review and meta-analysis
Cumulative risk and child development
A Brief Measure of Social Support
| Highly cited | No |
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