Mental Health

Bullying behavior and mental health among college students in Sichuan, China: a cross-sectional study.

TL;DR

In a single-college convenience sample of 1,120 students in Sichuan, China, 21.5% reported being bullied and 9.0% reported bullying others, and both traditional and cyberbullying victimization were significantly associated with higher anxiety, depression and PTSD scores, while only traditional bullying victimization was associated with lower psychological resilience.

Key Findings

About one in five students reported being bullied and about one in eleven reported bullying others.

  • Of 1,120 students surveyed, 241 (21.5%) reported being bullied.
  • 101 (9.0%) reported bullying others.
  • The cross-sectional survey ran from August 18 to September 10, 2025, using class-based online channels and convenience sampling at a single college.

Age and ethnicity were not significantly related to any of the four mental health indicators.

  • Mann-Whitney U tests showed no significant effects of age and ethnicity on the four mental health indicators (all p > 0.05).
  • The indicators were anxiety (GAD-7), depression (PHQ-9), PTSD symptoms, and psychological resilience (CD-RISC-25).

Gender and family residence groups differed significantly in anxiety and depression scores, and family residence groups also differed in resilience scores.

  • Gender and family residence groups exhibited statistically significant differences in GAD-7 and PHQ-9 scores (p < 0.05).
  • Family residence groups additionally differed in CD-RISC-25 scores (p < 0.05).

Traditional bullying victimization and cyberbullying victimization were significantly associated with higher anxiety, depression and PTSD scores.

  • Regression analyses gave standardized coefficients (β) ranging from 0.280 to 0.561, all p < 0.001.
  • This pattern held for both victimization types across the three symptom outcomes.

Cyberbullying victimization showed a stronger association with PTSD symptoms than traditional bullying victimization.

  • The authors report that cyberbullying victimization was more strongly associated with PTSD symptoms than traditional bullying.
  • On this basis the authors suggest prioritizing trauma-focused interventions for cyberbullying victims.

Traditional bullying victimization was associated with lower psychological resilience.

  • The regression gave β = -0.134, p = 0.009.
  • The authors suggest resilience enhancement programs may benefit traditional bullying victims.

Sensitivity analysis suggested that some inverse associations observed for traditional bullying with certain indicators may reflect suppression effects.

  • The abstract states the inverse association between traditional bullying and certain indicators 'may be driven by suppression effects'.
  • This indicates that some coefficients should be interpreted cautiously when bullying types are modeled together.

The authors conclude that campus-based screening and bullying prevention are needed for university students.

  • They recommend campus-based mental health screening, early identification of bullying involvement, and targeted prevention initiatives.
  • The sample came from a single college by convenience sampling with a cross-sectional design, which limits causal inference and generalizability.

What This Means

This study surveyed 1,120 students at one college in Sichuan, China, in late summer 2025. About 21.5% said they had been bullied, and 9.0% said they had bullied others. Students also completed standard questionnaires on anxiety, depression, post-traumatic stress symptoms, and resilience (the ability to cope with stress). Students who had been bullied, whether in person or online, had notably higher anxiety, depression, and PTSD scores. Cyberbullying victimization was more strongly linked to PTSD symptoms than traditional bullying. Traditional bullying victimization was also linked to lower resilience. Gender and where a student's family lived were related to anxiety and depression scores, but age and ethnicity were not. This research suggests that bullying remains a mental health concern at the university level, not just in adolescence, and that different types of bullying may relate to different needs, such as trauma-focused support after cyberbullying and resilience-building after traditional bullying. Because the study was a one-time survey at a single college with a convenience sample, it cannot show that bullying causes these problems, and the results may not apply to all students.

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Citation

Jing Y, Cao R, Yang D, Liu Y, Zhang J, Hui H, et al.. (2026). Bullying behavior and mental health among college students in Sichuan, China: a cross-sectional study.. Frontiers in public health. https://doi.org/10.3389/fpubh.2026.1889019