Drug addiction statistics reveal a story of immense suffering, rampant abuse, and great public danger. In 2019:
- 19.3 million people aged 12 and over suffered from a substance use disorder.
- Among people aged 12 or older in 2019, 57.2 million people used illicit drugs in the past year.
- Marijuana use increased sharply from 15.9% (2018) to 17.5% in 2019.
- 10.1 million people misused opiates in the past year.
- Among people aged 12 or older in 2019, 2.0 million people used methamphetamines in the past year.
- Among individuals aged 12 or older, the misusers of prescription pain relievers declined from 4.7 percent (or 12.5 million people) in 2015 to 3.5 percent (or 9.7 million people) in 2019.
- The number of people with a substance use disorder remained constant between 2015 and 2019 and slightly over 20 million.
In the 2019 National Survey on Drug Use and Health (NSDUH), 19.3 million American adults reported a past-year substance use disorder, and out of this group 9.5 million (49.2 percent) also suffered from a co-occurring mental health disorder. The range of co-occurring disorders known to coincide with drug addiction is broad and includes virtually every type of mental illness recognized by the American Psychiatric Association.
It is generally believed that people with mental health issues turn to drugs and alcohol to self-medicate, although excessive drug consumption may play a role in the onset of conditions like depression or anxiety disorders in some cases.
While drug addiction greatly impacts people on personal and family levels, it also has a significant impact on society. A 2011 study by the National Drug Intelligence Center (NDIC) showed that illicit drug use cost the U.S. economy more than $193 billion in 2007. This included costs from healthcare, losses in productivity, and crime.
Regardless of which came first, when co-occurring disorders are present simultaneously with addiction, all conditions must be treated together if true healing is to occur.