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Estimated Prevalence and Trends in Use of Cocaine Including Crack in the US

"In 2016, the estimate of about 1.9 million people aged 12 or older who were current users of cocaine (Figure 15) included about 432,000 current users of crack. The numbers correspond to about 0.7 percent of the population aged 12 or older who were current users of cocaine (Figure 22) and 0.2 percent who were current users of crack (Table A.7B in Appendix A). The 2016 estimate for current cocaine use was similar to the estimates in most years between 2007 and 2015, but it was lower than the estimates in 2002 to 2006.

How Federal Surveys Estimate the Prevalence Of Substance Use Disorders

"Illicit drug use disorder is defined as meeting DSM-IV criteria for either dependence or abuse for one or more of the following illicit drugs: marijuana, cocaine, heroin, hallucinogens, inhalants, methamphetamine, or prescription psychotherapeutic drugs that were misused (i.e., pain relievers, tranquilizers, stimulants, and sedatives). There are seven possible dependence criteria for specific illicit drugs:
"1. spent a lot of time engaging in activities related to use of the drug,
"2. used the drug in greater quantities or for a longer time than intended,

NSDUH's Method For Estimating Prevalence Of "Illicit Drug Use Disorders" In The US

"Illicit drug use disorder is defined as meeting DSM-IV criteria for either dependence or abuse for one or more of the following illicit drugs: marijuana, cocaine, heroin, hallucinogens, inhalants, methamphetamine, or prescription psychotherapeutic drugs that were misused (i.e., pain relievers, tranquilizers, stimulants, and sedatives). There are seven possible dependence criteria for specific illicit drugs:
"1. spent a lot of time engaging in activities related to use of the drug,
"2. used the drug in greater quantities or for a longer time than intended,

Current Marijuana and Other Illegal Substance Use and Trends in the US

"The estimated 28.6 million people aged 12 or older who were current illicit drug users in 2016 represent 10.6 percent of the population aged 12 or older (Figures 15 and 16). Stated another way, 1 in 10 individuals aged 12 or older in the United States used illicit drugs in the past month. Approximately 2.0 million adolescents aged 12 to 17 in 2016 were current users of illicit drugs, which represents 7.9 percent of adolescents. Approximately 1 in 4 young adults aged 18 to 25 (23.2 percent) were current users of illicit drugs in 2016.

Prevalence of Illegal Drug Use in the US Among People Aged 12 or Older

"In 2016, 28.6 million people aged 12 or older used an illicit drug in the past 30 days, which corresponds to about 1 in 10 Americans overall (10.6 percent) but ranges as high as 1 in 4 for young adults aged 18 to 25. Regardless of age, the illicit drug use estimate for 2016 continues to be driven primarily by marijuana use and the misuse of prescription pain relievers. Among people aged 12 or older, 24.0 million were current marijuana users and 3.3 million were current misusers of prescription pain relievers.

Estimated Prevalence of Current Illicit Drug Use In The US By People 12 Or Older

Estimated Prevalence of Current Illicit Drug Use In The US By People 12 Or Older, by Race and Ethnicity: "In 2015, an estimated 27.1 million Americans aged 12 or older were current (past month) illicit drug users, meaning that they had used an illicit drug during the month prior to the survey interview (Figure 1). The most commonly used illicit drug in the past month was marijuana, which was used by 22.2 million people aged 12 or older. An estimated 6.4 million people reported misusing psychotherapeutic drugs in the past month, including 3.8 million people who were misusers of prescription pain relievers. Thus, the number of current misusers of pain relievers was second to marijuana among specific illicit drugs. Smaller numbers of people in 2015 were current users of the other illicit drugs shown in Figure 1.

Prevalence of Past-Month (Current) Marijuana Use in the US

"As noted in the illicit drug use section, an estimated 24.0 million Americans aged 12 or older in 2016 were current users of marijuana (Figure 15). This number of past month marijuana users corresponds to 8.9 percent of the population aged 12 or older (Figure 17). The percentage of people aged 12 or older who were current marijuana users in 2016 was higher than the percentages from 2002 to 2015.

Exposure to Prevention Messages by Youth In and Outside of School

"In 2016, 71.8 percent of youths aged 12 to 17 who were enrolled in school in the past year reported having seen or heard drug or alcohol use prevention messages at school (Figure 10). This percentage was lower than the percentages in 2002 to 2013, but it was similar to the percentages in 2014 and 2015. In 2002, for example, 78.8 percent of adolescents who were enrolled in school reported exposure to substance use prevention messages at school.

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