{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T18:00:33Z","timestamp":1782842433610,"version":"3.54.5"},"reference-count":48,"publisher":"JMIR Publications Inc.","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JMIR Public Health Surveill"],"abstract":"Abstract<\/jats:title>\n \n Background<\/jats:title>\n Nonsuicidal self-injury (NSSI) is a major public health problem leading to psychological problems in adolescents and young adults, similar to disorders such as depression and anxiety.<\/jats:p>\n <\/jats:sec>\n \n Objective<\/jats:title>\n The aims of this study were to investigate (1) the interaction between BMI and socioenvironmental factors (including chronotype and mental health) that contribute to NSSI, and (2) whether self-esteem plays a mediating role in this association.<\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n \n From May to June 2022, the multistage cluster sampling method was used to sample college students in four grades, including freshmen and seniors. The baseline participants were followed up 6 months later, excluding those who did not qualify, and the participants included 1772 college students. Socioenvironmental factors (chronotype\/mental health), self-esteem, and NSSI were measured using a questionnaire. Multivariate linear regression models and chi-square\n \n analysis were used to evaluate the linear relationship between BMI, socioenvironmental factors, and self-esteem and the NSSI status. We use a process approach (mediation-moderation analysis) to explore the complex relationships between these variables.\n <\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n The mean age of the participants was 20.53 (SD 1.65) years at baseline. A significant association was revealed, suggesting that a high BMI (\u03b2=.056, 95% CI 0.008\u20100.086,\n P<\/jats:italic>\n =.018) was associated with a higher NSSI. There was also an interaction among BMI, socioenvironmental factors, and NSSI. Socioenvironmental factors played both moderating and mediating roles in the relationship between BMI and NSSI, whereas self-esteem only played a mediating role.\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions<\/jats:title>\n Paying attention to factors such as overweight and obesity is important for early BMI control to identify other potential risk factors for NSSI and to evaluate how self-esteem can be improved considering multiple perspectives to improve the effect of BMI on NSSI in adolescents.<\/jats:p>\n <\/jats:sec>","DOI":"10.2196\/52928","type":"journal-article","created":{"date-parts":[[2025,2,24]],"date-time":"2025-02-24T01:51:42Z","timestamp":1740361902000},"page":"e52928-e52928","source":"Crossref","is-referenced-by-count":6,"title":["Association Among BMI, Self-Esteem, and Nonsuicidal Self-Injury in Young Adults to Understand the Influence of Socioenvironmental Factors: Longitudinal 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