Epidemiological characteristics and trends of non-suicidal self-injury among middle school students in Jiading District of Shanghai from 2015 to 2023

ZHU Yanhong; ZHANG Qin; LIU Xinxin; ZHANG Yanfei; JING Guangzhuang; GUO Manyu; XUE Junlei; PENG Qian; MA Feifei; YU Hongjie; SHI Huijing; PENG Hui

doi:10.16835/j.cnki.1000-9817.2025263

Volume 46 Issue 9

Sep. 2025

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Article Navigation > CHINESE JOURNAL OF SCHOOL HEALTH > 2025 > 46(9): 1282-1286

ZHU Yanhong, ZHANG Qin, LIU Xinxin, ZHANG Yanfei, JING Guangzhuang, GUO Manyu, XUE Junlei, PENG Qian, MA Feifei, YU Hongjie, SHI Huijing, PENG Hui. Epidemiological characteristics and trends of non-suicidal self-injury among middle school students in Jiading District of Shanghai from 2015 to 2023[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2025, 46(9): 1282-1286. doi: 10.16835/j.cnki.1000-9817.2025263

Citation:

ZHU Yanhong, ZHANG Qin, LIU Xinxin, ZHANG Yanfei, JING Guangzhuang, GUO Manyu, XUE Junlei, PENG Qian, MA Feifei, YU Hongjie, SHI Huijing, PENG Hui. Epidemiological characteristics and trends of non-suicidal self-injury among middle school students in Jiading District of Shanghai from 2015 to 2023[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2025, 46(9): 1282-1286. doi: 10.16835/j.cnki.1000-9817.2025263

Citation:

ZHU Yanhong, ZHANG Qin, LIU Xinxin, ZHANG Yanfei, JING Guangzhuang, GUO Manyu, XUE Junlei, PENG Qian, MA Feifei, YU Hongjie, SHI Huijing, PENG Hui. Epidemiological characteristics and trends of non-suicidal self-injury among middle school students in Jiading District of Shanghai from 2015 to 2023[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2025, 46(9): 1282-1286. doi: 10.16835/j.cnki.1000-9817.2025263

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Epidemiological characteristics and trends of non-suicidal self-injury among middle school students in Jiading District of Shanghai from 2015 to 2023

doi: 10.16835/j.cnki.1000-9817.2025263

1.
School Health and Ophthalmic Disease Prevention, Jiading District Center for Disease Control and Prevention Department, Shanghai 201800, China

Received Date: 2025-04-08
Rev Recd Date: 2025-07-19

Available Online: 2025-10-10

Publish Date: 2025-09-25

Abstract

Abstract

Objective To analyze the epidemiological characteristics and changing trends of non-suicidal self-injury (NSSI) behaviors among middle school students in Jiading District of Shanghai, from 2015 to 2023, so as to provide a basis for the development of NSSI prevention and control measures among students. Methods Using a stratified cluster random sampling method, a total of five times for Shanghai Adolescent Health Risk Behavior Surveys were conducted for every two years in Jiading District of Shanghai from 2015 to 2023. A total of 5 231 middle school students from junior high schools and senior high schools were selected for questionnaire surveys. Intergroup comparisons were performed using the χ² test or the χ² trend test, and the JointPoint 5.0 software was used to analyze the changing trends, with the annual percent change (APC) used for evaluation. A binary Logistic regression model was employed to analyze the related factors of NSSI behavior among middle school students. Results In 2023, the reported NSSI rate among middle school students in Jiading District was 14.2%. The rate was significantly higher among junior high school students (17.1%) than that among senior high school students (11.1%), and higher among females (19.2%) than that among males (10.0%) (χ²=10.04, 23.21, both P < 0.01). From 2015 to 2023, the overall reported NSSI rate showed an increasing trend, rising from 8.6% in 2015 to 14.2% in 2023 (χ_trend²=22.25), with an APC of 6.64% (t=3.49), and the APC for girls was 9.79% (t=3.20) (all P < 0.05). Among students reporting NSSI, the proportion experiencing ≥6 episodes increased from 10.8% in 2015 to 19.2% in 2023 (χ_trend²=6.57, P < 0.05). Multivariate Logistic regression analysis indicated that girls, junior high school students, those with insomnia, depressive emotion and drinkers had higher risks of NSSI, compared to boys, senior high school students, those without insomnia, non-depressive emotion students and non-drinkers (OR=1.71, 1.96, 3.44, 4.76, 1.77, all P < 0.05). Conclusions The reported rate of NSSI among middle school students in Jiading District of Shanghai, increased annually from 2015 to 2023, and the proportion of repeated NSSI also showed an upward trend. Early intervention measures targeting middle school students, especially junior high school students and females, should be implemented to prevent and control its occurrence and development.
- Self-injurious behavior,
- Mental health,
- Regression analysis,
- Students

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References(23)

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