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Association between lifestyle patterns and suicidality in adolescents: SESSAMO Project.

Adriana Goñi-Sarriés¹, Julieth P Sulaiman-Rojas², Azucena Díez-Suárez³

¹Mental Health Network. Navarre Health Service, Spain; IdiSNA, Navarre Institute for Health Research, Navarre, Spain.

Psychiatry Research

|June 25, 2026

Summary

A healthy lifestyle, measured by the Global Index of Lifestyle Quality (GILQ), was linked to lower rates of adolescent suicidality in Spanish youth. This highlights lifestyle patterns as potential risk markers for mental health.

Keywords:

Adolescents Depression Lifestyles Suicidality

Related Experiment Videos

Area of Science:

Adolescent health
Public health
Mental health research

Background:

Adolescent suicidality is a significant public health issue.
Limited evidence exists on the combined impact of lifestyle behaviors on adolescent suicidality.
This study investigates the relationship between lifestyle and suicidality in Spanish adolescents.

Purpose of the Study:

To examine the association between lifestyle behaviors, summarized by the Global Index of Lifestyle Quality (GILQ), and suicidality.
To identify specific lifestyle factors influencing adolescent mental health.
To explore the role of lifestyle patterns in adolescent suicidality risk.

Main Methods:

Cross-sectional study of 2042 Spanish adolescents (aged 14-16).
Assessment of lifestyle behaviors including diet, physical activity, sleep, screen time, substance use, and social interactions.
Measurement of suicidality using the Columbia Suicide Severity Rating Scale.
Multivariate logistic regression analysis adjusted for confounders and depressive symptoms.

Main Results:

9.6% of participants reported suicidality.
A higher Global Index of Lifestyle Quality (GILQ) score was inversely associated with lower odds of suicidality (OR=0.40).
Improved sleep quality and diet quality showed initial inverse associations with suicidality, which diminished after adjusting for depressive symptoms.

Conclusions:

A healthy lifestyle pattern is inversely associated with suicidality in Spanish adolescents.
Lifestyle patterns may serve as important risk markers for adolescent suicidality.
Findings underscore the link between lifestyle and mental health, advocating for integrated prevention strategies.