Trial reportBMC public health2025
Dialectical behavioral therapy-based prevention of non-suicidal self-harm among secondary students in China: a randomized controlled trial.
Trial report in BMC public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
5 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundNon-suicidal self-injury (NSSI) in adolescents is a significant public health issue worldwide. Dialectical Behavior Therapy (DBT) is an evidence-based intervention for treating NSSI. However, there are currently few independent studies on DBT interventions specifically targeting NSSI, particularly in Shantou city, within the Chaoshan area of southeast China. This study aimed to evaluate the effectiveness of DBT in reducing NSSI among secondary school students.
methodsA total of 220 7th-grade students from four classes in two schools in Shantou City were selected using randomized cluster sampling. Two classes from one school were assigned to the DBT-based intervention group, while two classes from the other school were assigned to the control group, which received general education intervention. Comparative analyses of quantitative and categorical data were conducted using Student's t-test and chi-square tests.
resultsThe occurrence of NSSI in DBT group and control group was 23.60% and 24.50%, respectively. Most students who engaged in NSSI sustained mild injuries (71.43%). The occurrence of NSSI in the DBT group decreased from 23.60% to 10.91% after the DBT-based interventions (χ
conclusionsThe six-month DBT-based intervention markedly reduced NSSI and improved mental-health indicators, suggesting that DBT offers an effective, scalable framework for school-based prevention in culturally diverse Chinese settings.
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