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School-Based Social Relationships and Adolescent Mental Health: A Multilevel and LASSO-Based Analysis.

Created on 21 Sep 2026

Authors

Mahdi Naeim, Mohammad Narimani, Niloofar Mikaeili, Saghar Seifi

Published in

The Journal of school health. Volume 96. Issue 10. Pages e70234.

Abstract

This study examined associations between school-based social relationship quality (school belonging, peer support, teacher-student interaction) and mental health outcomes among high school students in Iran, identifying protective and risk factors for depression, anxiety, and stress.
A cross-sectional survey was conducted in 2024 among 1200 students from 32 public and private high schools in Tehran-Iran. Standardized measures were used to assess school belonging, perceived peer support from friends, teacher-student relationship quality, and symptoms of depression, anxiety, and stress. Data were analyzed in R using multilevel mixed-effects models, quantile regression (50th and 90th percentiles), and LASSO-based variable selection (glmnet).
Higher school-based relationship quality was associated with lower depression, anxiety, and stress. Effects were stronger in public schools than private schools: Depression β = -1.727 versus -0.966; Anxiety β = -1.513 versus -0.819; Stress β = -1.601 versus -0.868. Academic stress was the strongest risk factor (β ≈ +1.60), followed by social media use (β ≈ +0.33). Socioeconomic status (SES) showed protective effects (β ≈ -0.72-0.81). Gender and age were minor; quantile regression showed stability.
Strengthening school belonging, peer support, and teacher-student relationships, reducing academic stress, and supporting low-SES students may improve mental health.
School relationships are key protective factors, with stronger effects in public schools, supporting school-based interventions.

PMID:
42764461
Bibliographic data and abstract were imported from PubMed on 21 Sep 2026.

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