For more information, check out Drugs in the Infopedia.

Source link : http://monitoringthefuture.org/pubs/monographs/mtf-vol1_2012.pdf

  • In 2012, the rank order by age group for annual prevalence of using any illicit drug was
    • 19- to 28-year-olds (34%)
    • college students (37%)
    • 12th graders (40%)
    • 19- to 28-year-olds (34%)
    • 10th graders (30%)
    • 8th graders (13%).
  • Use of any illicit drug other than marijuana in the past 12 months, there was less variability:
    • 19- to 28-year-olds, 12th graders and college students all were at 17%,
    • 10th graders at 11%
    • 8th graders at 6%.

“Bath Salts”

  • So-called because they are sold over the counter as apparently innocuous products like bath salts but really contain strong stimulants, have been given much attention in the news recently; however, there has been very little scientific information about the prevalence of their use.
  • The 2012 MTF survey provides the first national survey data on their use.  Annual prevalence rates in 2012 are very low:
    • 8th graders- 0.8%,
    • 10th graders- 0.6%
    • 12th graders- 1.3%


  • Daily marijuana use in all of these groups rose substantially after 1992, reaching peak levels in a somewhat staggered fashion  Daily use began a slow decline after 1999 until 2010 consistent with a cohort effect pattern. In 2010 daily use at all three grade levels increased significantly, and it increased further in all grades in 2011 reaching:
    • 1.3%, in grades 8
    • 3.6%  in grades 10
    • 6.6% in grade 12
    • There was little further change in 2012. College student and young adult rates of daily use have been fairly level in recent years.


  • In general, prevalence of daily marijuana use has been slow to decline, even though annual and 30-day prevalence figures were dropping.
  • Although the rates today are low relative to the peaks reported in the late
  • 1970s, the 6.6% figure for 12th graders in 2011 is the highest observed in some 30 years.
  • The fact that daily marijuana use was rising through 2011 in all three grades serves as a reminder that a relapse in the epidemic of marijuana use, as occurred in the early 1990s, could still occur.
  • The role of the many debates on legalizing marijuana for medical use, the actual legalization for recreational use in some states, and the experiences those states have with the new laws likely will have an impact on present and future secular trends in use.