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Prevalence of suicidal ideation and suicide attempts among Iranian university students: systematic review and
Seyyed Muhammad Mahdi Mahdavinoor1, Aghil Mollaei2, Nazanin Mousavi3
1Faculty of Allied Medical Sciences, Mazandaran University of Medical Sciences, Sari, Iran.
Background:
Students, due to their specific academic and psychosocial conditions, are at higher risk of suicide compared with the general population, and suicide is one of the leading causes of death among students worldwide.
Aims:
To investigate the prevalence of suicidal ideation and suicide attempts among Iranian university students.
Method:
A systematic search was conducted in international and national databases, including Scopus, Web of Science, PsycINFO, PubMed and Magiran, up to February 2025. Title and abstract screening was performed by a single reviewer. Two reviewers independently undertook full-text screening (study selection) and data extraction. Data were analysed using Stata 16. The heterogeneity of studies was tested with Cochran's Q and quantified with the I2 statistic. To explore the sources of heterogeneity, we performed sensitivity analyses and meta-regression. The protocol was registered in the International Registration of Systematic Reviews (no. CRD42023471340).
Results:
We included 28 studies in this research. The pooled prevalence of suicidal ideation, 12-month suicide attempts and lifetime suicide attempts among Iranian students was 17% (95% CI: 13-21%), 3% (95% CI: 2-4%) and 8% (95% CI: 6-10%), respectively, with substantial heterogeneity (I2 = 94.85, 91.16 and 93.46%, respectively).
Conclusions:
This study highlights the high prevalence of suicidal ideation and suicide attempts among Iranian university students, underscoring the need for effective preventive strategies and further research.
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