Community prevention trial reduces risky drinking, alcohol-related crashes and trauma

November 06, 2000

Environmental strategies, plus public education and awareness prove effective

A study reported in the November 8 issue of the Journal of the American Medical Association (Volume 284, Number 18) shows that communities that undertake comprehensive prevention strategies can effectively reduce alcohol-related traffic crashes and injuries from crashes and assaults. Relative to matched comparison sites, intervention communities (two in California and one in South Carolina) experienced marked reductions in alcohol-related crashes, nighttime injury crashes, injuries due to assault, and assaults that required hospitalization, as well as in self-reported alcohol consumption, heavy drinking, and drinking and driving.

First author Harold D. Holder, Ph.D., and his colleagues at the Prevention Research Center, Berkeley, California, and the Pacific Institute for Research and Evaluation reported the gains at the conclusion of the April 1992-December 1996 Community Prevention Trial (CPT). The National Institute on Alcohol Abuse and Alcoholism supported the study.

"Dr. Holder and his colleagues demonstrate that complex community systems can be studied rigorously - a formidable achievement given the complexity of the environment," said NIAAA Director Enoch Gordis, M.D. "The CPT provides powerful new evidence that comprehensive, coordinated environmental prevention programs can be effective in reducing alcohol-related injuries and accidents in the community."

In a comprehensive public health approach, the CPT involved local city councils, the police, the media, alcohol sales and service institutions, and others in an array of interventions designed to

-mobilize communities through coalition-building and media advocacy,
-encourage responsible beverage service,
-reduce underage drinking by limiting access to alcohol,
-increase local enforcement of drinking and driving laws, and
-limit alcohol access through zoning measures.

Earlier studies had shown each intervention to be independently effective but they had never before been combined in a comprehensive program.

Rather than drinking per se the CPT targeted environmental conditions and drinking patterns that are likely to be antecedents to trauma. While the proportion of respondents who reported drinking remained essentially unchanged across the five-year study, the intervention communities experienced substantial reductions in the quantity of alcohol consumed per occasion.

The researchers implemented the interventions in successive stages tied to specific effectiveness indices. For example, phase 1 and phase 2, which focused in large part on drunk driving prevention, were indexed by police use of breath-testing devices and roadside checkpoints, respectively. The date of onset for each phase provided an intervention "pulse" that enabled the researchers to track intervention effects on drinking behavior and alcohol-related injuries.

Outcome measures included self-reported and objective measures. To obtain the self-reports, the investigators placed 120 random general population telephone calls each month for 66 months in both the intervention and control communities. For the objective outcomes, they relied on routinely collected traffic and hospital discharge data. They found that, at five years, nighttime car crashes with injuries had declined by 10 percent, crashes involving drunk drivers had declined by 6 percent, injuries due to assault had fallen by 43 percent and hospitalized assaults by 2 percent. Self-reported alcohol consumption per drinking occasion declined by 6 percent, having "too much to drink" declined by 49 percent, and driving while "over the legal limit" declined by 51 percent in the intervention relative to the control communities.

The study has several limitations, the authors point out: The intervention communities were not randomly selected, and the interventions may have introduced a bias that influenced self-reports. Even so, "the CPT shows that the public need not remain passive recipients of trauma caused by heavy drinking," said Dr. Holder.

Research interest in community-based prevention programs is based in part on the successes from the study of cardiovascular disease, which began more than 20 years ago. The heart disease interventions were helpful in changing behaviors by reducing smoking and dietary fat intake and by controlling blood pressure, and have led to a lower incidence of acute coronary syndromes such as heart attack and unstable angina. During recent years, alcohol researchers have adapted these approaches in community interventions to prevent and reduce youth alcohol use and drinking and driving (see News Releases at http://www.niaaa.nih.gov).

"While education and public awareness campaigns alone are unlikely to prove effective in reducing the rate of alcohol-related injury and death, a combination of those programs with some of the environmental strategies is mutually reinforcing and thus can be successful," Dr. Holder writes.
-end-
For interviews with Dr. Holder, telephone the Pacific Institute for Research and Evaluation and Prevention Research Center in Berkeley, California (510/486-1111). For interviews with Dr.Gordis, telephone NIAAA Press (301/443-0595). For additional information on alcohol research, please visit http://www.niaaa.nih.gov.

The National Institute on Alcohol Abuse and Alcoholism is a component of the National Institutes of Health, U.S. Department of Health and Human Services.

NIH/National Institute on Alcohol Abuse and Alcoholism

Related Alcohol Articles from Brightsurf:

Alcohol use changed right after COVID-19 lockdown
One in four adults reported a change in alcohol use almost immediately after stay-at-home orders were issued: 14% reported drinking more alcohol and reported higher levels of stress and anxiety than those who did not drink and those whose use stayed the same.

Changes in hospitalizations for alcohol use disorder in US
Changes over nearly two decades in the rate of hospitalizations and in-hospital deaths from alcohol use disorder in the US were examined in this study.

Associations of alcohol consumption, alcohol-induced passing out with risk of dementia
The risk of future dementia associated with overall alcohol consumption and alcohol-induced loss of consciousness in a population of current drinkers was examined in this observational study with more than 131,000 adults.

New alcohol genes uncovered
Do you have what is known as problematic alcohol use?

Does estrogen influence alcohol use disorder?
A new study from researchers at the University of Illinois at Chicago shows that high estrogen levels may make alcohol more rewarding to female mice.

Sobering new data on drinking and driving: 15% of US alcohol-related motor vehicle fatalities involve alcohol under the legal limit
A new study in the American Journal of Preventive Medicine, published by Elsevier, found that motor vehicle crashes involving drivers with blood alcohol concentrations (BACs) below the legal limit of 0.08 percent accounted for 15% of alcohol-involved crash deaths in the United States.

Alcohol-induced deaths in US
National vital statistics data from 2000 to 2016 were used to examine how rates of alcohol-induced deaths (defined as those deaths due to alcohol consumption that could be avoided if alcohol weren't involved) have changed in the US and to compare the results by demographic groups including sex, race/ethnicity, age, socioeconomic status and geographic location.

Cuts in alcohol duty linked to 2000 more alcohol-related deaths in England
Government cuts to alcohol taxes have had dramatic consequences for public health, including nearly 2000 more alcohol-related deaths in England since 2012, according to new research from the University of Sheffield's School of Health and Related Research (ScHARR).

Integrated stepped alcohol treatment for people in HIV care improves both HIV & alcohol outcomes
Increasing the intensity of treatment for alcohol use disorder (AUD) over time improves alcohol-related outcomes among people with HIV, according to new clinical research supported by the National Institutes of Health.

The Lancet:Targets to reduce harmful alcohol use are likely to be missed as global alcohol intake increases
Increasing rates of alcohol use suggest that the world is not on track to achieve targets against harmful alcohol use, according to a study of 189 countries' alcohol intake between 1990-2017 and estimated intake up to 2030, published in The Lancet.

Read More: Alcohol News and Alcohol Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.