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Background <p>The COVID-19 pandemic has had a significant impact on the physical and mental health of human beings. Most adolescents in mainland of China have been infected with COVID-19 after the adjustment of the dynamic zero-COVID-19 policy. This study aims to analyze the relationship between the COVID-19 pandemic effect and depressive symptoms among adolescents in mainland China.</p> Methods <p>This school-based repeated cross-sectional study was conducted on students aged 11–19 years from September to October 2022 and September to October 2023 in Ningbo, Zhejiang Province, China, using a stratified cluster, multistage sampling method. Data analysis occurred from January to June 2024. Depression symptoms and bullying victimization, exclusion of cyberbullying, were assessed using the 20-item Center for Epidemiological Studies Depression Scale (CES-D) and Bully/Victim Questionnaire, respectively.</p> Results <p>In the first survey wave in 2022 during the dynamic zero-COVID-19 policy period in Mainland China, 10,224 participants completed the questionnaires. In wave 2 survey in 2023 which was the first year after lifting of the dynamic zero-COVID-19 policy, 11,604 participants completed the questionnaires. This resulted in a sample of 10,224 in wave 1 and 11,604 in wave 2. The mean age in wave 1 was 15.2 (SD = 1.7) and 15.1 (SD = 1.8) in wave 2. The prevalence of depression symptoms in adolescents in wave 2 was higher than in wave 1 (17.0% vs. 14.6%, <i>P</i> &lt; 0.05). The prevalence of bullying victimization and types of bullying victimization in school among adolescents were higher in 2023 than in 2022. A total of 3.2% of the 2023 participants and 1.7% of the 2022 participants experienced bullying victimization in school (<i>P</i> &lt; 0.05). The odds ratio of experiencing depression (CES-D Score ≧ 16) and bullying victimization in school were 1.18 (95% CI, 1.10–1.28) and 1.86 (95% CI, 1.55–2.24) times higher, respectively, in 2023 than in 2022 (<i>P</i> &lt; 0.01). The mediated regression analysis revealed that after lifting of the dynamic zero-COVID-19 had a significant association with an increase in depression symptoms, which was partially mediated by bullying victimization in school (total association:β = 0.175; SE = 0.038; <i>P</i> &lt; 0.001; direct association:β = 0.138; SE = 0.039; <i>P</i> &lt; 0.001; indirect association: a*b = 0.037; <i>P</i> &lt; 0.001; the proportion of mediation: 20.88%, <i>P</i> &lt; 0.001).</p> Conclusions <p>The findings of this repeated cross-sectional study suggest that an increased risk of depression symptoms or bullying victimization has been associated with the COVID-19 pandemic in mainland China after lifting the dynamic zero-COVID-19 policy. In addition, bullying victimization may play a mediating role in the associations between the pandemic and depression symptoms. These findings indicated that additional support should be offered to Chinese adolescents in the period of post-pandemic COVID-19.</p> Clinical trial number <p>Not applicable.</p>

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Comparison of bullying victimization and depression symptoms among Chinese adolescents before and after the end of the dynamic zero-COVID-19 policy: a repeated cross-sectional study

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年2月3日

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  • Yong Yang,
  • Yi Lin,
  • Feng Wang,
  • Si Jia Wang,
  • Jing Hui Wang,
  • Feng Tong,
  • Qing Hai Gong

摘要

Background

The COVID-19 pandemic has had a significant impact on the physical and mental health of human beings. Most adolescents in mainland of China have been infected with COVID-19 after the adjustment of the dynamic zero-COVID-19 policy. This study aims to analyze the relationship between the COVID-19 pandemic effect and depressive symptoms among adolescents in mainland China.

Methods

This school-based repeated cross-sectional study was conducted on students aged 11–19 years from September to October 2022 and September to October 2023 in Ningbo, Zhejiang Province, China, using a stratified cluster, multistage sampling method. Data analysis occurred from January to June 2024. Depression symptoms and bullying victimization, exclusion of cyberbullying, were assessed using the 20-item Center for Epidemiological Studies Depression Scale (CES-D) and Bully/Victim Questionnaire, respectively.

Results

In the first survey wave in 2022 during the dynamic zero-COVID-19 policy period in Mainland China, 10,224 participants completed the questionnaires. In wave 2 survey in 2023 which was the first year after lifting of the dynamic zero-COVID-19 policy, 11,604 participants completed the questionnaires. This resulted in a sample of 10,224 in wave 1 and 11,604 in wave 2. The mean age in wave 1 was 15.2 (SD = 1.7) and 15.1 (SD = 1.8) in wave 2. The prevalence of depression symptoms in adolescents in wave 2 was higher than in wave 1 (17.0% vs. 14.6%, P < 0.05). The prevalence of bullying victimization and types of bullying victimization in school among adolescents were higher in 2023 than in 2022. A total of 3.2% of the 2023 participants and 1.7% of the 2022 participants experienced bullying victimization in school (P < 0.05). The odds ratio of experiencing depression (CES-D Score ≧ 16) and bullying victimization in school were 1.18 (95% CI, 1.10–1.28) and 1.86 (95% CI, 1.55–2.24) times higher, respectively, in 2023 than in 2022 (P < 0.01). The mediated regression analysis revealed that after lifting of the dynamic zero-COVID-19 had a significant association with an increase in depression symptoms, which was partially mediated by bullying victimization in school (total association:β = 0.175; SE = 0.038; P < 0.001; direct association:β = 0.138; SE = 0.039; P < 0.001; indirect association: a*b = 0.037; P < 0.001; the proportion of mediation: 20.88%, P < 0.001).

Conclusions

The findings of this repeated cross-sectional study suggest that an increased risk of depression symptoms or bullying victimization has been associated with the COVID-19 pandemic in mainland China after lifting the dynamic zero-COVID-19 policy. In addition, bullying victimization may play a mediating role in the associations between the pandemic and depression symptoms. These findings indicated that additional support should be offered to Chinese adolescents in the period of post-pandemic COVID-19.

Clinical trial number

Not applicable.