Sleep

[Impact of Anhui medical college students' childhood abuse experiences on depression and anxiety symptoms: The mediating role of mobile phone dependence and sleep quality].

TL;DR

Childhood abuse experiences can increase the risk of depression and anxiety symptoms in medical college students, and can also indirectly raise the level of depression and anxiety symptoms through the chain mediating role of mobile phone dependence and sleep quality.

Key Findings

The detection rates of depressive symptoms and anxiety symptoms among Anhui medical college students were 8.49% and 9.48%, respectively.

  • Sample consisted of 3662 students who completed both baseline and follow-up surveys
  • 976 males and 2686 females were included
  • Cluster sampling was used, drawing from two schools: Anhui Medical College and Anqing Medical College
  • Baseline survey conducted November-December 2019; follow-up conducted November-December 2020

After controlling for anxiety symptoms, childhood abuse experiences showed significant positive correlations with mobile phone dependence, sleep quality, and depression symptoms.

  • Correlation between childhood abuse and mobile phone dependence: r=0.120, P<0.01
  • Correlation between childhood abuse and sleep quality: r=0.154, P<0.01
  • Correlation between childhood abuse and depression symptoms: r=0.135, P<0.01
  • Assessed using the Childhood Trauma Questionnaire-28 Item Short Form (CTQ-28)

Mobile phone dependence was significantly positively correlated with both sleep quality and depression symptoms.

  • Correlation between mobile phone dependence and sleep quality: r=0.333, P<0.01
  • Correlation between mobile phone dependence and depression symptoms: r=0.135, P<0.01
  • Mobile phone dependence was assessed using the Self-rating Questionnaire for Adolescent Problematic Mobile Phone Use
  • Sleep quality was measured using the Pittsburgh Sleep Quality Index

After controlling for depression symptoms, childhood abuse experiences showed significant positive correlations with mobile phone dependence, sleep quality, and anxiety symptoms.

  • Correlation between childhood abuse and mobile phone dependence: r=0.108, P<0.01
  • Correlation between childhood abuse and sleep quality: r=0.147, P<0.01
  • Correlation between childhood abuse and anxiety symptoms: r=0.092, P<0.01
  • Mobile phone dependence was also significantly correlated with sleep quality (r=0.323) and anxiety symptoms (r=0.047), both P<0.01

Mobile phone dependence and sleep quality played a significant chain mediating role between childhood abuse experiences and depression symptoms.

  • Chain mediation effect size: 0.076 (95% CI: 0.061–0.091, P<0.01)
  • Mediation effect proportion: 23.58%
  • Analysis was adjusted for gender, family location, only child status, parental education level, and family economic conditions
  • Bootstrap program and PROCESS software were used to examine mediation effects

Mobile phone dependence and sleep quality played a significant chain mediating role between childhood abuse experiences and anxiety symptoms.

  • Chain mediation effect size: 0.062 (95% CI: 0.050–0.074, P<0.01)
  • Mediation effect proportion: 23.40%
  • Sleep quality showed a significant positive correlation with anxiety symptoms: r=0.100, P<0.01
  • Analysis controlled for the same covariates as the depression mediation model

What This Means

This research suggests that medical college students in Anhui, China who experienced childhood abuse (such as physical, emotional, or sexual maltreatment) are at greater risk for depression and anxiety. Among the 3,662 first-year students followed over one year, about 8-9% showed symptoms of depression or anxiety. The study found that childhood abuse was directly linked to higher levels of these mental health problems, but also that this relationship was partly explained by two intermediate factors: excessive mobile phone use and poor sleep quality. Specifically, students who had experienced childhood abuse were more likely to develop problematic mobile phone use habits, which in turn was associated with poorer sleep, which then contributed to higher levels of depression and anxiety. This chain — abuse leading to phone dependence, then poor sleep, then mental health symptoms — accounted for roughly 23% of the total effect of childhood abuse on both depression and anxiety. This means that while childhood abuse has a direct harmful effect on mental health, a meaningful portion of that harm is channeled through unhealthy phone use patterns and disrupted sleep. This research suggests that interventions targeting problematic mobile phone use and improving sleep quality could help reduce the mental health burden carried by young adults who experienced childhood abuse. Screening for childhood trauma among college students, combined with programs to promote healthy digital habits and better sleep, may be important strategies for mental health support in this population.

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Citation

Cao X, Li S, Li X, Liu Y, Deng T, Xuan M, et al.. (2026). [Impact of Anhui medical college students' childhood abuse experiences on depression and anxiety symptoms: The mediating role of mobile phone dependence and sleep quality].. Wei sheng yan jiu = Journal of hygiene research. https://doi.org/10.19813/j.cnki.weishengyanjiu.2025.06.011