PRC Resources

Media Releases

PRC occasionally publicizes information about its projects, including important stories of discovery. These media releases are posted here with the most recent release posted first.

Legalization of Medical Marijuana is Related to Use among Youth in Oregon
June 2017

Adolescents and Edible Marijuana: Patterns and Problems
April 2017

How much does alcohol and other drug abuse cost Californians?
February 2017

Do Marijuana Dispensaries Attract More Crime?
October 2016

What are the Riskiest Places for Young People to Drink?
April 2016

How the Number and Location of Alcohol Sales Outlets Affects Traffic Crashes
March 2016

How do Race and Income Affect Exposure to Alcohol Outlets?
February 2016

Where parents go and what they do: Factors that affect parent behavior
November 2015

More Off-Premise Alcohol Outlets Associated with More Traumatic Injuries
September 2015

Marijuana legalization could have negative impacts on child welfare
August 2015

Where Underage Drinking Occurs Related to Drinking Problems
August 2015

Alcohol Prices Influence Crime and Crash Rates in British Columbia
July 2015

Risky Drinking among Intercollegiate and Intramural College Athletes
July 2015

The Dark Side of Social Support: How Social Companionship, Drinking, and Alcohol Outlets Affect Child Abuse
June 2015

Where different teens drink alcohol: Risky and underage drinking contexts
June 2015

Frequent drinkers are more likely to neglect supervising their children
UCLA Study - May 2015

Social host laws tied to less underage drinking
November 2014

Teenagers who live in communities with strict "social host" laws are less likely to spend their weekends drinking at parties.
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Increased Alcohol Availability Affects Sales, Price, and Alcohol-Related Deaths
August 2013

The presence of more alcohol outlets in an area increases alcohol sales, decreases prices and increases the rate of alcohol related deaths, recent research finds.
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Underage Tobacco Purchases Related to Community and Store Characteristics
January 2013

A recent study finds that underage-looking buyers attempting to purchase tobacco were more likely to be successful if the clerk asks their age.
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Legalization of Marijuana and Youth Use of Marijuana
January 2013

A recent study found that the legalization of medical marijuana does not seem to increase marijuana use among youths.
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The Relationship between Crime and Medical Marijuana Dispensaries
December 2012

Neighborhoods that contain medical marijuana dispensaries are no more likely to experience violent and property crime than neighborhoods without these establishments, a recent study found.
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Online Alcohol Education Course for College Students Reduces Heavy Drinking
November 2012

AlcoholEdu for College, an online course for college freshmen designed to reduce heavy drinking and alcohol-related problems, was found to have short term, but not long term effects on these behaviors.
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Underage Drinking Related to Enforcement, Availability and Drinking Norms
July 2012

Law enforcement and community drinking norms can affect underage alcohol use.
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Comprehensive Community Approaches to Underage Drinking Reduce Sales to Minors
July 2012

Community-based alcohol access reduction and enforcement approaches to underage drinking prevention can be effective in reducing sales to minors.
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Medical marijuana outlets not linked to crime
July 2012

Despite some concerns to the contrary, neighborhoods with medical marijuana dispensaries may not have higher crime rates than other neighborhoods—at least in one California city.
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Local Tobacco Policy and Tobacco Outlet Density Associated with Youth Smoking
March 2012

A recent study examined the effects of policies that limit access to and availability of tobacco products as strategies to prevent youth smoking.
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Density of neighbourhood bars is linked to intimate partner violence-related visits to the emergency department
January 2012

A new study looks at links between alcohol outlet densities and emergency department visits related to intimate partner violence.
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NIH-supported studies show online course helps reduce harmful college drinking
September 2011

An online alcohol prevention course can help reduce harmful drinking among college freshmen, but the benefits in the fall don't last through the spring, according to a study supported by the National Institute on Alcohol Abuse and Alcoholism (NIAAA), part of the National Institutes of Health.
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Child Abuse Related to Where Parents Drink
July 2011

A recent study shows that whether or not parents physically abuse their children is related to parents’ social life, in particular where parents go to drink alcohol.
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Safer Colleges can Reduce Heavy Drinking
April 2011

A recent study shows that changing rules and enforcement on and near college campuses can significantly reduce heavy and dangerous drinking among college students.
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Young Offenders Often Released into Risky Neighborhood Environments
September 2010

A recent study published in the Journal of the Society for Social Work and Research examined the neighborhood environment into which young offenders are typically released after incarceration. How well young offenders adjust to their post-release environment can have a profound impact on their future.
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Alcohol outlets associated with injuries among youth and young adults
December 2009

A new study of places that sell alcohol – bars, restaurants liquor stores, convenience stores, etc. – shows that the type and location of these outlets appears to affect alcohol related injures among youth and young adults.
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Too many bars in rural areas linked to high suicide rates
September 2009

A new study has found that completed suicides and suicide attempts occur at higher rates in rural communities that have more bars and taverns relative to other rural communities.
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Dangerous college drinking: Prevention is possible, studies suggest
June 2009

Alcohol is sometimes seen as part and parcel of college life, but there are programs that can significantly reduce students' risky drinking.
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Colleges, communities combat off-campus student drinking
June 2009

Programs that bring colleges and their surrounding neighborhoods together may help reduce off-campus drinking problems, a new study suggests.
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Communities Containing More Alcohol Outlets Show Increased Underage Alcohol Access
May 2009

Research Indicates Communities with a Higher Concentration of Alcohol Outlets are More Likely to Contain Greater Levels of Underage Alcohol Access.
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Study Shows Correlation Between Number of Alcohol Retailers and Youth Injuries
September 2008

Children who live in neighborhoods with a high number of alcohol outlets may be at a higher risk of personal injury, according to a research study that will be published in the November 2008 issue of Alcoholism: Clinical & Experimental Research.
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Heavy drinking patterns learned when young can lead to long term health problems
November 2007

Heavy drinking early in life is associated with overweight, abdominal fat, and low levels of "good" cholesterol later in life, increasing risk of heart disease, type 2 diabetes, and stroke
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Young people engaging in sexual activity differ on definitions of virginity, abstinence
November 2007

Some teens believe they will stay virgins after engaging in oral sex, genital touching and even anal sex, according to a new study in the Journal of Adolescent Health. Also, nearly half of teens said intimate touching and oral sex were not considered sex.
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Closing bars earlier leads to decline in murder rate in one Brazilian town
October 2007

Despite having one of the nation’s highest homicide rates, the Brazilian town of Diadema cut its murder rate in half in the last few years –mostly by establishing 11 p.m. as the closing time for bars and other places that sell alcohol. 
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Higher beer taxes, 21 drinking age reduces traffic deaths of young people, study finds
April 2007

Communities with few alcohol regulations could consider raising taxes on beer as a way to reduce drunken driving fatalities among young people. Alcohol-control policies such as the minimum legal drinking age and raising beer taxes have helped prevent youth access to alcohol and the problems of underage drinking.
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Young people able to buy beer at stores even without proper ID, new study finds
March 2007

Clerks at grocery and convenience stores were more likely to sell alcohol to a young person without asking for an ID than other stores, according to a recent statewide study.
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Violent assaults increase around alcohol outlets
May 2006

A new study by researchers in California has confirmed what many people have suspected, that the incidence of violent assaults is higher around places where alcohol is sold.
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Rap listeners prone to alcohol, drugs, violence
April 2006

Young people who listen to rap and hip hop music are more likely to have problems with alcohol, drugs and violence than listeners of other types of music, a new study shows. The link to these problems raises serious questions about the alcohol industry’s use of rap and hip hop to market products, the study author said.
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Heavy drinking still acute among young military members
March 2006

Young military men in all branches of service drink significantly more alcohol than their civilian counterparts. And, military culture contributes to this ongoing problem, according to a recently published report.
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Setting Minimum Prices for Alcohol: A More Effective Strategy to Reduce Drinking
January 2006

Research has shown that increasing price is a promising approach to reducing alcohol consumption and related problems. However, a new study finds that price increases may not always have the intended effects on alcohol sales because the price and availability of alcohol can have a complex relationship to consumption. Instead, the most effective strategy may be the establishment of minimum prices for each type of alcoholic beverage.
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Euro youth drink and get drunk more than U.S. youth
November 2005

Many Americans believe that young people from European have less trouble with alcohol because their cultures teach them to handle alcohol responsibly from an early age. A recent report debunks that myth, showing that a great majority of European countries have higher intoxication rates among young people than the United States, and some countries are much higher.
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Kids like cute creatures in beer ads, more likely to buy brand of beer, study suggests
October 2005

A Budweiser commercial showing a rock star ferret replacing talking lizards as the official beer mascot was appealing to children 10 to 17 years old and made them want to buy Bud, recent PRC research showed.
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Is wine good for your health? New study says wine drinkers are just healthier people
June 2005

The wine industry wants people to believe that wine itself is good for your health. But new research shows instead that wine drinkers simply live healthier lifestyles than beer drinkers, liquor drinkers or non-drinkers.
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Click here to read the entire report


New Book Provides Comprehensive Overview of Substance Abuse Prevention
May 2005

A newly published book, Preventing Harmful Substance Use: The Evidence Base for Policy and Practice, is a comprehensive compendium of the most current information on the problem of drug and alcohol abuse and the range of effective strategies available to prevent it.
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Report shows concentration of bars, liquor stores linked to neighborhood violence
May 2005

When bars, liquor stores and other businesses that sell alcohol are located close together in neighborhoods, more assaults and other violent crimes occur in those neighborhoods, according to a growing body of research examined in a newly released white paper.
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Promising to wait: virginity pledges and adolescent sexual behavior
April 2005

Adolescents who take public virginity pledges are no less likely to engage in various forms of sexual activity than adolescents who do not take these pledges, a recent study of teen behavior found. The study, carried out by the Prevention Research Center of the Pacific Institute for Research and Evaluation in Berkeley, California, was based on a survey of 870 12- to 16-year-olds in the San Francisco and Los Angeles areas of California, with follow-up surveys six months and one year later.
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Click here to read the entire report


Change in Bar Closing Time Cuts Murder Rate in Brazilian Town
January 2005

The town of Diadema in Brazil has reduced its murder rate by almost half in the last few years –mostly by establishing 11 PM as the closing hour for bars and other places that sell alcohol for on-premises consumption. This action resulted in the saving of about 273 lives in the two years following the change in policy. The finding is reported by researchers at the Prevention Research Center of the Pacific Institute for Research and Evaluation in Berkeley, California who worked with government officials from Diadema to document the effects of the policy change.
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Click here to read the entire report


Community vigilance on alcohol control can cut teen drinking
December 2004

Community attitudes and efforts on underage drinking may have the biggest impact on whether teens binge drink and drive drunk, according to new research.
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College Students are Bingeing to Extremes
September 2004

With millions of high school seniors entering college this month, university administrators need to be vigilant in combating extremely hazardous drinking that new research shows is worse among freshman males.
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Heavy Drinking Among College Students Can Be Predicted
March 2004

Drinking among college students has been recognized as a serious problem on college campuses in the U.S. Research has shown that college drinkers drink more, and more often, than young people not in college.
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Teens Who Work Are More Likely to Drink Heavily
January 2004

Teens who work more than ten hours per week are more likely to engage in heavy or "binge" drinking, according to a recent study by the Prevention Research Center of the Pacific Institute for Research and Evaluation (PIRE).
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