{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T16:29:40Z","timestamp":1753892980348,"version":"3.41.2"},"reference-count":50,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2024,12,16]],"date-time":"2024-12-16T00:00:00Z","timestamp":1734307200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Public Health"],"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Vaccination plays an important role in fighting against COVID-19. However, it is unclear about the association among vaccination, mental health, and bullying behaviors in China.<\/jats:p><\/jats:sec><jats:sec><jats:title>Method<\/jats:title><jats:p>This online survey was conducted to investigate the association among vaccination status, mental health problems and bullying behaviors in students from December 14, 2022 to February 28, 2023 in Sichuan, China. All participants (<jats:italic>N<\/jats:italic>\u202f=\u202f82,873) were adolescents recruited via their teachers and professors. Patient Health Questionnaire-9 (PHQ-9), Generalized Anxiety Disorder-7 (GAD-7), PTSD Checklist for DSM-5 (PCL-5), Sleep Severity Index Scale (ISI) and Cyberbullying behaviors were tested.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The rates of depression, anxiety and PTSD in participants without vaccination were significantly higher than that in those with vaccination. Moreover, participants with more doses of vaccines had significantly lower rates of depression, anxiety, PTSD, school and cyber bullying (<jats:italic>p<\/jats:italic>\u202f&amp;lt;\u202f0.001). The rates of homosexual orientation, drinking, smoking were higher in participants with three or more doses of vaccines than those with less doses of vaccines (<jats:italic>p<\/jats:italic>\u202f&amp;lt;\u202f0.001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This study suggests that COVID-19 vaccination will not only protect students\u2019 physical health, but also improve mental health. It is crucial to explore the mechanism between vaccination and mental health problems and bullying behaviors in further studies.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fpubh.2024.1469792","type":"journal-article","created":{"date-parts":[[2024,12,16]],"date-time":"2024-12-16T06:20:12Z","timestamp":1734330012000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Impact of COVID-19 vaccination on adolescent and youth students\u2019 mental health and bullying behaviors after the lifting of COVID-19 restrictions in China"],"prefix":"10.3389","volume":"12","author":[{"given":"Hong-Jun","family":"Song","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cong","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yun-Fei","family":"Mu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jia","family":"Cai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhongyue","family":"Deng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yu","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ai-Ping","family":"Deng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ting","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bin","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yi","family":"Huang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jin","family":"Chen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yan","family":"Hu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bo","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wei","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lin","family":"Lu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mao-Sheng","family":"Ran","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2024,12,16]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"974848","DOI":"10.3389\/fpubh.2022.974848","article-title":"Mental health and chest CT scores mediate the relationship between COVID-19 vaccination status and seroconversion time: a cross-sectional observational study in B.1.617.2 (Delta) infection patients","volume":"10","author":"Zhang","year":"2022","journal-title":"Front Public Health"},{"key":"ref2","doi-asserted-by":"publisher","first-page":"1207","DOI":"10.1056\/NEJMoa2118691","article-title":"Protection against SARS-CoV-2 after Covid-19 vaccination and previous infection","volume":"386","author":"Hall","year":"2022","journal-title":"N Engl J Med"},{"key":"ref3","doi-asserted-by":"publisher","first-page":"4738","DOI":"10.1038\/s41467-022-31838-8","article-title":"Protection of COVID-19 vaccination and previous infection against omicron BA.1, BA.2 and Delta SARS-CoV-2 infections","volume":"13","author":"Andeweg","year":"2022","journal-title":"Nat Commun"},{"key":"ref4","doi-asserted-by":"publisher","first-page":"115325","DOI":"10.1016\/j.socscimed.2022.115325","article-title":"Social asset or social liability? 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