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Methamphetamine-involved overdose deaths nearly tripled between 2015-19: NIH study

Medicine/drugs. Stock photo: DG/Pixabay

Maryland (US), Sep 23 (MNN) Overdose deaths involving methamphetamine nearly tripled from 2015 to 2019 among people aged 18 to 64 in the US, an NIH study has said.

The number of people who reported using methamphetamine during this time did not increase as steeply, but the analysis found that populations with methamphetamine use disorder have become more diverse, said the study by the National Institute on Drug Abuse (NIDA), part of the National Institutes of Health..

Published on Wednesday in JAMA Psychiatry, the study suggests that increases in higher-risk patterns of methamphetamine use, such as increases in methamphetamine use disorder, frequent use, and use of other drugs at the same time, may be contributing to the rise in overdose deaths.

“We are in the midst of an overdose crisis in the United States, and this tragic trajectory goes far beyond an opioid epidemic.

“In addition to heroin, methamphetamine and cocaine are becoming more dangerous due to contamination with highly potent fentanyl, and increases in higher risk use patterns such as multiple substance use and regular use,” said NIDA Director Nora D Volkow, one of the authors of the study.

“Public health approaches must be tailored to address methamphetamine use across the diverse communities at risk, and particularly for American Indian and Alaska Native communities, who have the highest risk for methamphetamine misuse and are too often underserved.”

In 2020, more than 93,000 Americans died from drug overdoses, marking the largest one-year increase in overdose deaths ever recorded, according to provisional data from the USCenters for Disease Control and Prevention.

This increase has largely been driven by rising overdoses involving synthetic opioids, primarily fentanyl.

Overdose deaths involving psychostimulants, and particularly methamphetamine, have also risen steeply in recent years, and many of these deaths involved use of an opioid at the same time.

However, questions remain on how trends in methamphetamine use contribute to greater risk for overdose deaths.

The researchers found that from 2015 to 2019, the number of overdose deaths involving psychostimulant drugs other than cocaine, (largely methamphetamine), rose from 5,526 to 15,489, a 180 per cent increase.

However, the number of people who reported using methamphetamine only increased by 43 per cent over the same period.

In addition, the data show that people reporting frequent methamphetamine use (100 days or more per year) rose by 66 per cent between 2015 and 2019, and people reporting the use of methamphetamine and cocaine together increased by 60 per cent during this period.

The researchers also found that since 2017, more people who reported using methamphetamine in the past year also reported higher-risk use patterns (i.e., had methamphetamine use disorder and/or injected methamphetamine) than reported lower-risk use patterns (i.e., did not meet criteria for methamphetamine use disorder and/or inject methamphetamine).

These findings indicate that riskier use patterns may have contributed to the increased numbers of methamphetamine-involved overdose deaths during this time period.

The researchers also noted shifts in the populations using methamphetamine between 2015 and 2019. Whereas, historically, methamphetamine has been most commonly used by middle-aged white persons, this analysis found that American Indians/Alaska Natives had the highest prevalence of methamphetamine use, as well as methamphetamine use disorder and methamphetamine injection.

Previous studies have found that American Indians/Alaska Natives also had the greatest increases in methamphetamine overdose deaths in recent years.

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