Results from the 2007 National Survey on Drug Use and Health (NSDUH): National Findings, Substance Abuse and Mental Health Services Administration, September 2008
This survey is the primary source of information on the use of illicit drugs, alcohol, and tobacco in the civilian noninstitutionalized population of the United States aged 12 years old and older. The survey interviews approximately 67,500 persons each year. Highlights from this study are presented below.
Illicit Drug Use
- In 2007, an estimated 19.9 million Americans aged 12 or older were current (past month) illicit drug users, meaning they had used an illicit drug during the month prior to the survey interview. This estimate represents 8 percent of the population aged 12 years old or older. Illicit drugs include marijuana/hashish, cocaine (including crack), heroin, hallucinogens, inhalants, or prescription-type psychotherapeutics used nomedically.
- The rate of current illicit drug use among persons aged 12 years or older in 2007 (8 percent) was similar to the rate in 2006 (8.3 percent).
- Marijuana was the most commonly used illicit drug (14.4 million past month users). Among persons aged 12 or older, the rate of past month marijuana use in 2007 (5.8 percent) was similar to the rate in 2006 (6 percent).
- In 2007, there were 2.1 million current cocaine users aged 12 or older (.8 percent of the population). These estimates were similar to 2006 (2.4 million people or 1 percent).
- Hallucinogens were used in the past month by 1 million persons (.4 percent) aged 12 or older in 2007, including 503,000 (.2 percent) who had used Ecstasy. These estimates were similar to 2006.
- There were 6.9 million (2.8 percent) persons aged 12 or older who used prescription-type psychotherapeutic drugs nonmedically in the past month. Of these 5.2, million used pain relievers, the same as in 2006.
- In 2007, there were an estimated 529,000 current users of methamphetamine aged 12 or older (.2 percent of the population). These estimates were not significantly different from 2006 (731,000 or .3 percent).
- Among youth aged 12 to 17, the current illicit drug use rate remained stable from 2006 (9.8 percent) to 2007 (9.5 percent).
- Between 2002 and 2007, youth rates declined significantly for illicit drugs in general (from 11.6 to 9.5 percent) and for marijuana, cocaine, hallucinogens, LSD, Ecstasy, prescription-type drugs used nonmedically, pain relievers, stimulants, methamphetamine, and the use of illicit drugs other than marijuana.
- The rate of current marijuana use among youths aged 12 to 17 declined from 8.2 percent in 2002 to 6.7 percent in 2007.
- Among young adults aged 18 to 25, there were decreases from 2006 to 2007 in the rate of current use of several drugs, including cocaine, Ecstasy, stimulants, methamphetamine, and illicit drugs other than marijuana.
- From 2002 to 2007, there was an increase among young adults aged 18 to 25 in the rate of current use of prescription pain relievers, and a decrease in the use of hallucinogens, Ecstasy, and methamphetamine.
- Among those aged 50 to 54, the rate of past month illicit drug use increased from 3.4 percent in 2002 to 5.7 percent in 2007.
- Among persons aged 12 and older who used pain relievers nomedically in the past 12 months, 56.5 percent reported that the source of the drug the most recent time they used was from a friend or relative for free.
- In 2007, there were 9.9 million persons aged 12 or older who reported driving under the influence of illicit drugs during the past year. The rate was highest among young adults aged 18 to 25.
Initiation of Substance Use (Incidence, or First-Time Users) within the Past 12 Months
- In 2007, an estimated 2.7 million persons aged 12 and older used an illicit drug for the first time within the past 12 months. Marijuana was the first drug used by 56.2 percent, followed by psychotherapeutics (30.6 percent, including 19 percent with pain relievers, 6.5 percent with tranquilizers, 4.1 percent with stimulants and 1.1 percent with sedatives), inhalants (10.7 percent), and hallucinogens (2 percent).
- The illicit drug categories with the largest number of past year initiates among persons aged 12 or older were nonmedical use of pain relievers (2.1 million) and marijuana use (2.1 million). These numbers were not significantly different from 2006.
- There were 775,000 persons aged 12 or older who had used inhalants for the first time within the past 12 months; 66.3 percent were under age 18 when they first used. There was no significant change in the number of initiates from 2006 to 2007.
- The number of past year initiates of methamphetamine among persons aged 12 and older was 157,000 in 2007. This is significantly lower than 2006 (259,000).
- Ecstasy initiation was lower in 2007 (781,000) than 2002 (1.2 million).
Youth Prevention-Related Measures
- Perceived risk is measured by NSDUH as the percentage reporting that there is great risk in the substance use behavior. Among youths aged 12 to 17, there were no changes in the perceived risk of marijuana, cocaine, or heroin use between 2006 and 2007. However, between 2002 and 2007, there were increases in the perceived risk of smoking marijuana once a month (from 32.4 to 34.5 percent) and smoking marijuana once or twice a week (from 51.5 to 54.7 percent). On the other hand, the percentage of youths who perceived that trying heroin once or twice is a great risk declined from 58.5 percent in 2002 to 57 percent in 2007, and those who perceived that using LSD once or twice a week is a great risk declined from 76.2 to 74.2 percent.
- Almost half (49.1 percent) of youths aged 12 to 17 reported in 2007 that it would be “fairly easy” or “very easy” for them to obtain marijuana if they wanted some. About one in seven (14.1 percent) indicated that heroin would be “fairly” or “very” easily available, and 14.4 percent reported easy availability for LSD.
- The percentage of youths aged 12 to 17 reporting that it would be easy to obtain cocaine declined from 25.9 percent in 2006 to 24.5 percent in 2007.
- Perceived availability decreased between 2002 and 2007 for marijuana (55 to 49.1 percent) heroin (from 15.8 to 14.1 percent), and LSD (from 19.4 to 14.4 percent).
- A majority of youths aged 12 to 17 reported that their parents would strongly disapprove of their trying marijuana or hashish once or twice. Current marijuana user was much less prevalent among youths who perceived strong parental disapproval for trying marijuana or hashish once or twice than for those who did not (4.6 vs. 28.1 percent).
- In 2007, 11.3 percent of youths aged 12 to 17 reported that they had participated in substance use prevention programs outside of school within the past year. Almost four fifths (77.9 percent) reported having seen or heard drug or alcohol prevention messages from sources outside of school, lower than in 2002 when the percentage was 83.2 percent. Most (59.6 percent) youths reported in 2007 that they had talked with a parent in the past year about the dances of drugs, tobacco, or alchol use.
Substance Dependence, Abuse and Treatment
- In 2007, an estimated 22.3 million persons (9 percent of the population aged 12 or older) were classified with substance dependence or abuse in the past year based on criteria specified in the Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV). Of these, 3.2 million were classified with dependence on or abuse of both alcohol and illicit drugs, 3.7 million were dependent on or abused illicit drugs but not alcohol, and 15.5 million were dependent on or abused alcohol but not illicit drugs.
- Between 2002 and 2007, there was no change in the number of persons with substance dependence or abuse (22 million in 2002, 22.3 million in 2007).
- The specific illicit drugs that had the highest levels of past year dependence or abuse in 2007 were marijuana (3.9 million) followed by pain relievers (1.7 million) and cocaine (1.6 million).
- In 2007, 23.2 million persons aged 12 or older needed treatment for an illicit drug or alcohol problems (9.4 percent of persons aged 12 and older). Of these, 2.4 million (1 percent of persons aged 12 or older and 10.4 percent of those who needed treatment) received treatment as a specialty facility. Thus, 20.8 million persons (8.4 percent of the population aged 12 and older) needed treatment for an illicit drug or alcohol use problem but did not receive treatment at a specialty substance abuse facility in the past year.
- Of the 20.8 million people in 2007 who were classified as needing substance use treatment but did not receive treatment at a specialty facility in the past year, 1.3 million persons (6.4 percent) reported that they felt they needed treatment for their illicit drug or alcohol use problem. Of these 1.3 million persons who felt they needed treatment, 380,000 (28.5 percent) reported that they made an effort to get treatment, and 955,000 (71.5 percent) reported making no effort to get treatment.
The full report can be found at http://www.oas.samhsa.gov/nsduh/2k7nsduh/2k7Results.pdf.