Adolescent use of marijuana, according to groups that are against any use of the plant, like the Partnership for Drug-Free Kids (who should be barking at BigPharma; buy hey, what do we know?!), is associated with adverse effects later in life. For them, the identification of factors underlying adolescent use is of significant public health importance.
The relationship between US state laws that permit cannabis for medical purposes and adolescent marijuana use has been a hot topic of debate. The claim is that these laws convey a message about cannabis acceptability that increases its use in adolescents soon after passage. A recent study utilized 24 years worth of national data from the USA to examine the relationship between state medical cannabis laws and adolescent use of marijuana.
The study’s authors use a multistage, random-sampling design with replacement, compiled from surveys conducted annually amongst national surveys of 8th, 10th, and 12th-grade students (modal ages 13–14, 15–16, and 17–18 years, respectively), in about 400 schools each year. Students in these schools complete anonymized, self-administered questionnaires that include questions on cannabis use. They analysed data from 1,098,270 adolescents surveyed between 1991 and 2014. The primary outcome of this analysis was any marijuana use …read more