Genetic vulnerability to schizophrenia is associated with cannabis use patterns during adolescence

During early adolescence, many youths start using alcohol, tobacco, and cannabis after which substance use increases rapidly (e.g., Hibell et al., 2012; Van Laar et al., 2013). At the age of 12 years, 17% of Dutch adolescents reported lifetime alcohol use (de Looze et al., 2014), 6% had smoked at least once (Verdurmen et al., 2014) and 0.3% reported ever using cannabis (Van Laar et al., 2013). By the age of 16, these percentages of substance use had increased to 79.3%, 43%, and 26.9% for lifetime alcohol use, smoking, and cannabis use respectively.

Source: Drug and Alcohol Dependence - July 2, 2018 Category: Addiction Authors: Marieke Hiemstra, Stefanie A. Nelemans, Susan Branje, Kristel R. van Eijk, Jouke-Jan Hottenga, Christiaan H. Vinkers, Pol van Lier, Wim Meeus, Marco P. Boks Source Type: research