Kaori Endo1, Shuntaro Ando2, Shinji Shimodera3, Syudo Yamasaki1, Satoshi Usami4, Yuji Okazaki5, Tsukasa Sasaki6, Marcus Richards7, Stephani Hatch8, Atsushi Nishida1. 1. Department of Psychiatry and Behavioural Science, Tokyo Metropolitan Institute of Medical Science, Setagaya-ku, Tokyo, Japan. 2. Department of Psychiatry and Behavioural Science, Tokyo Metropolitan Institute of Medical Science, Setagaya-ku, Tokyo, Japan; Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan. 3. Department of Neuropsychiatry, Kochi Medical School, Kochi University, Nankoku-shi, Kochi, Japan. Electronic address: shimodes@kochi-u.ac.jp. 4. Department of Psychology, University of Tsukuba, Tsukuba, Ibaraki, Japan. 5. Kouseikai Michinoo Hospital, Nagasaki-shi, Nagasaki, Japan; Tokyo Metropolitan Matsuzawa Hospital, Setagaya-ku, Tokyo, Japan. 6. Department of Physical and Health Education, Graduate School of Education, The University of Tokyo, Bunkyo-ku, Tokyo, Japan. 7. MRC Unit for Lifelong Health and Aging, University College London, London, United Kingdom. 8. Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, United Kingdom.
Abstract
PURPOSE: Social isolation is associated with suicidal ideation (SI) and self-harm (SH) among adolescents. However, the association between preference for solitude (PfS), SI, and SH is unknown. The prevalence of adolescents who have both of PfS and social isolation and the risks for SI and SH among them are also unknown. METHODS: Information on PfS, social isolation, SI, and SH was collected in a large-scale school-based survey on adolescents, using a self-report questionnaire. Associations between PfS, SI, and SH were examined by logistic regression analysis. The interactions between PfS and social isolation on SI and SH were also investigated. The odds of SI and SH were examined for groups defined by presence of PfS and social isolation. RESULTS: Responses from 17,437 students (89.3% of relevant classes) were available. After adjusting for demographic characteristics and social isolation, PfS was associated with increased odds of SI (odds ratio [OR] = 3.1) and SH (OR = 1.9). There was no interaction between PfS and social isolation on SI and SH. After adjusting for demographic characteristics, the odds for SI (OR = 8.6) and SH (OR = 3.8) were highest among adolescents with both PfS and social isolation (8.4% of all respondents). CONCLUSIONS: PfS was associated with increased odds of SI and SH in adolescents. No interaction effect between PfS and social isolation on SI and SH was found, but adolescents with PfS and social isolation had the highest risk for SI and SH. Parents and professionals should pay attention to suicide risk in adolescents with PfS.
PURPOSE: Social isolation is associated with suicidal ideation (SI) and self-harm (SH) among adolescents. However, the association between preference for solitude (PfS), SI, and SH is unknown. The prevalence of adolescents who have both of PfS and social isolation and the risks for SI and SH among them are also unknown. METHODS: Information on PfS, social isolation, SI, and SH was collected in a large-scale school-based survey on adolescents, using a self-report questionnaire. Associations between PfS, SI, and SH were examined by logistic regression analysis. The interactions between PfS and social isolation on SI and SH were also investigated. The odds of SI and SH were examined for groups defined by presence of PfS and social isolation. RESULTS: Responses from 17,437 students (89.3% of relevant classes) were available. After adjusting for demographic characteristics and social isolation, PfS was associated with increased odds of SI (odds ratio [OR] = 3.1) and SH (OR = 1.9). There was no interaction between PfS and social isolation on SI and SH. After adjusting for demographic characteristics, the odds for SI (OR = 8.6) and SH (OR = 3.8) were highest among adolescents with both PfS and social isolation (8.4% of all respondents). CONCLUSIONS: PfS was associated with increased odds of SI and SH in adolescents. No interaction effect between PfS and social isolation on SI and SH was found, but adolescents with PfS and social isolation had the highest risk for SI and SH. Parents and professionals should pay attention to suicide risk in adolescents with PfS.
Authors: Douglas K Novins; Robert R Althoff; Mary K Billingsley; Samuele Cortese; Stacy S Drury; Jean A Frazier; Schuyler W Henderson; Elizabeth McCauley; Tonya J H White Journal: J Am Acad Child Adolesc Psychiatry Date: 2020-05-08 Impact factor: 8.829