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Cross-national time trends in bullying victimization in 33 countries among children aged 11, 13 and 15 from 2002 to 2010
(Oxford University Press (OUP), 2015-03-24)
Background: Bullying among children and adolescents is a public health concern; victimization is associated with psychological and physical health problems. The purpose of this study is to examine temporal trends in bullying ...
Trends in the co-occurrence of tobacco and cannabis use in 15-year-olds from 2002 to 2010 in 28 countries of europe and north america
(Oxford University Press (OUP), 2015-03-24)
Background: Cannabis and tobacco use frequently co-occur. Adolescents who consume both substances experience more respiratory distress and psychosocial problems and are less likely to stop compared with those who use either ...