title: Prevalences of lifetime histories of self-cutting and suicidal ideation in Japanese adolescents: differences by age.
abstract: We examined differences in the prevalence of a lifetime history of self-cutting and suicidal ideation by age among junior and senior high-school students. Histories of self-cutting and suicidal ideation were reported by 9.9% and 40.4% of the students. Among early teens, females were more likely to report suicidal ideation than males, and among late teens, females were more likely than males to report self-cutting.
authors.affiliation: National Institute of Mental Health, Tokyo, Japan. tmatsu@ncnp.go.jp
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Matsumoto
authors.forename: Fumi
authors.initials: F
authors.lastname: Imamura
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Chiba
authors.forename: Yotaro
authors.initials: Y
authors.lastname: Katsumata
authors.forename: Masahiko
authors.initials: M
authors.lastname: Kitani
authors.forename: Tadashi
authors.initials: T
authors.lastname: Takeshima
mesh_terms: D000293:Adolescent; D000367:Age Factors; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D007564:Japan; D008297:Male; D016728:Self-Injurious Behavior / Q000453:epidemiology* / Q000523:psychology; D012737:Sex Factors; D013334:Students / Q000523:psychology / Q000706:statistics & numerical data*; D013406:Suicide, Attempted / Q000523:psychology / Q000706:statistics & numerical data*