Relationship of intentional self-harm using sharp objects with depressive and dissociative tendencies in pre-adolescence–adolescence |
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Authors: | Noriko Sho md Arata Oiji md phd Chizue Konno ma Koji Toyohara md Tatsuya Minami md phd Takashi Arai md phd and Yoji Seike md phd |
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Institution: | Department of Child and Adolescent Psychiatry, Kanagawa Children's Medical Center and;Department of Developmental Psychiatry, Kitasato University, Graduate School of Medical Science, Kanagawa, Japan |
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Abstract: | Aims: The objectives of the present study were to (i) evaluate the prevalence of children and adolescents who have engaged in intentional self-harm using a sharp object; and (ii) investigate the relationship between self-harm with sharp objects and depressive tendencies or dissociative tendencies. Methods: A total of 1938 students in grades 5–12 in Yokohama, Japan, were enrolled, and they completed anonymous self-report questionnaires including a question about intentional self-harm with a sharp object, the Depression Self-Rating Scale for Children (DSRSC) and the Adolescent Dissociative Experiences Scale (A-DES). Results: The prevalence of self-harm using sharp object was 5.4% among male 5th–6th graders, 4.0% among female 5th–6th graders, 5.3% among male 7th–9th graders, 15.1% among female 7th–9th graders, 6.6% among male 10th–12th graders, and 9.6% among female 10th–12th graders. Categorical regression analysis showed that a small amount of variance in self-harm by sharp object was explained by DSRSC and A-DES scores. Conclusions: Self-harm with a sharp object was prevalent among pre-adolescents and adolescents and was associated with depressive and dissociative tendencies. |
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Keywords: | child and adolescent psychiatry depression dissociation school mental health self-harm |
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