Use Prevalence

Past Year Use

In 2018, an estimated 1.9 million (0.7%) Americans aged 12 or older had used methamphetamine in the past year, of which about 205,000 were new users (approximately 560 each day). Among recurrent users of methamphetamine aged 12 or older, 0.4% developed methamphetamine use disorder for dependence and abuse (NSDUH, 2018).

Overall past year methamphetamine use increased by 17% from 2015-2018 (Figure 1). From 2015-2018, young adults aged 18 to 25 had highest prevalence of past year methamphetamine use, followed by adults aged 26 or older, and youth aged 12 to 17 (Figure 2).

Ever Use

Among high school students, the percent that had ever used methamphetamine has been decreasing from 2003-2017 in the US. Los Angeles County (LAC), which historically had a high prevalence of ever use of methamphetamine among high school students, had consistent large decreases since 2005, nearing that of the overall US estimates in 2017 (Figure 3).

Demographics

Male high school students had a higher estimated prevalence of ever use of methamphetamine than female students in LAC for most years during the 2003-2017 period. The estimated prevalence among females surpassed that of males in 2005, 2007, and 2017. In 2017, 2.5% of male students and 2.7% of female students had ever used methamphetamine in their lifetime (Figure 4).

In LAC, Latinx high school students had the highest prevalence of ever use of methamphetamine in 2005 (12.2%), but this has since decreased consistently to 2.2% in 2017 (Figure 5).

The prevalence of ever use of methamphetamine among high school students of other race/ethnic groups fluctuated over the period. In 2017, whites had the highest prevalence of ever use of methamphetamine compared to other race/ethnic groups (Figure 5).

References

Centers for Disease Control and prevention (CDC). High School Youth Risk Behavior Survey (YRBS). Retrieved from https://nccd.cdc.gov/youthonline/App/Results.aspx?LID=LO. Retreived 2019.

National Drug Early Warning System (NDEWS). Los Angeles County Sentinel Community Site (SCS) Drug Use Patterns and Trends, 2015-2018

National Survey on Drug Use and Health (NSDUH). 2006-2016. Substate Region Estimates. http://www.samhsa.gov/data/all-reports?sort_bef_combine=field_date_printed_on_report%20DESC&items_per_page=15&keys=Substate Region Estimates

National Survey on Drug Use and Health (NSDUH). 2018. Key Substance Use and Mental Health Indicators in the United States: Results from the 2018 National Survey on Drug Use and Health. Tables 1.1A, 1.1B, 4.4B.