John A. Ronning

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CONTEXT No prospective population-based study examining predictive associations between childhood bullying behavior and long-term mental health outcomes in both males and females exists. OBJECTIVE To study predictive associations between bullying and victimization in childhood and later psychiatric hospital and psychopharmacologic treatment. DESIGN(More)
To study the associations between psychiatric disorders and self-perceived problems among adolescent boys. The study population consisted of 2348 Finnish boys born during 1981 attending obligatory military call-up (79.7% of the original sample). At military call-up in 1999, the boys filled in the Young Adult Self-Report (YASR) and Orientation of Life(More)
There are no prospective population-based studies examining predictive associations between childhood bullying behavior and adult criminality. To study predictive associations between bullying and victimization at age eight and adult criminal offenses. Nationwide birth cohort study from age 8 to 26 years. The sample consists of 5,351 Finnish children born(More)
OBJECTIVE To study the rate of, and factors associated with, recognition of psychiatric disorders and self-perceived problems among 18-year-old adolescent boys. METHOD The study population consisted of 2347 Finnish boys born during 1981 attending military call-up (79.7% of the original sample). At age 8, the boys were evaluated by parental and teacher(More)
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