Age of Onset and Its Related Factors in Cocaine or Methamphetamine Use in Adults from the United States: Results from NHANES 2005–2018

Alexandre Arthur Guerin and Jee Hyun Kim
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Alexandre Arthur Guerin: Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC 3052, Australia
Jee Hyun Kim: Mental Health Theme, The Florey Institute of Neuroscience and Mental Health, Parkville, VIC 3052, Australia

IJERPH, 2021, vol. 18, issue 22, 1-13

Abstract: Cocaine and methamphetamine are widely used illicit psychostimulants worldwide, with steadily increasing global markets that may impact on the frequency of use. Importantly, their use typically begins in youth. This is a particular concern because there is a link between the early age of first substance use and severity of substance use disorder later in life. The aim of the present study was therefore to investigate trends in prevalence, frequency, and age of onset of cocaine or methamphetamine use between 2005 and 2018 in the United States, using the nationally representative NHANES datasets. Factors associated with the ages of cocaine or methamphetamine use onset were also identified. From 2005 to 2018, prevalence and frequencies of cocaine or methamphetamine use increased, while age of onset remained relatively stable (~20 years of age). Annual household income, use of other substances, and intravenous drug use were identified as factors associated with early onset cocaine or methamphetamine use. These factors have important implications toward developing new prevention programs to reduce psychostimulant use.

Keywords: cocaine; methamphetamine; prevalence; frequency; onset; adolescence; risk factors; NHANES; epidemiology; addiction (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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