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Continued Decline in Youth Substance Abuse

Current illicit drug use among teens is continuing to decline, according to a new report by the U.S. Substance Abuse and Mental Health Services Administration (SAMHSA) released today. The study also shows positive signs that teens are seeing the dangers of abusing prescription drugs and methamphetamine and are pushing back. Among youth ages 12-17, the 2007 National Survey on Drug Use and Health (NSDUH), the Nation's largest substance use survey, shows that the significant decline in overall past month illicit drug use that began in 2002 continued through 2007, from 11.6 percent to 9.5 percent.

The survey, released at the start of the 19th Annual National Alcohol and Drug Addiction Recovery Month, shows that the reductions in youth drug use occurred for nearly every type of illicit drug including marijuana, cocaine, hallucinogens, LSD, and Ecstasy. The survey also shows dramatic declines in meth use, down by 67 percent (from 0.3% to 0.1%) and prescription drug abuse among teens, which declined overall by 18 percent, from 4 percent to 3.3 percent between 2002-2007.

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Secular Trends Higher in the Lifetime Prevalence of Alcohol Dependence in Women

News Briefs - News Briefs

Written by Jenna Bensoussan

Friday, 14 March 2008

The journal of Alcoholism: Clinical and Experimental Research recently published a study on secular trends with regards to alcohol consumption over the span of a lifetime.

U.S. epidemiologic surveys have consistently found higher lifetime prevalence of alcohol dependence among younger subjects than among older groups. Because lifetime prevalence is cumulative, such patterns are suggestive of strong secular trends; i.e., more-recently born subjects have developed more disease in a shorter period of time than their elders. However, it remains unclear whether such patterns truly reflect secular trends or are confounded by age-dependent factors such as differential recall, differential mortality, and other effects.

The research is based on static data from two large, national epidemiological surveys. A repeated cross-sectional analysis was conducted to compare lifetime prevalence of alcohol dependence across temporally adjacent birth cohorts surveyed at the same age, thus enabling estimates of cross-cohort differences while controlling for age-related factors.

In contrast with results from single cross-sectional analyses, there were few significant cross-cohort differences among groups of men compared at similar ages. On the other hand, women born between 1954 and 1963 were at 1.2-fold higher odds for lifetime drinking, and those who drank were at 1.5-fold higher odds for lifetime alcohol dependence, compared with the immediately preceding birth cohort (1944 to 1953). The 1944 to 1953 cohort was also at elevated odds for lifetime drinking compared with their predecessors (1934 to 1943). These results were largely due to changes among White and Hispanic women.

According to the researchers, these results suggest that there have been substantial secular increases in drinking and alcohol dependence among women, but not men. Analyses of single cross-sectional studies may tend to over-estimate secular trends by failing to account for age-dependent effects. Nonetheless, secular increases in drinking and alcohol dependence among women are evident after taking age-related factors into account.

Richard A. Grucza, Kathleen K. Bucholz, John P. Rice, Laura J. Bierut (2008)
Secular Trends in the Lifetime Prevalence of Alcohol Dependence in the United States: A Re-evaluation
doi:10.1111/j.1530-0277.2008.00635.x