PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Cannabis use among teens is on the rise in some developing countries

2013-11-22
(Press-News.org) Contact information: Jean O'Reilly
jean@addictionjournal.org
Wiley
Cannabis use among teens is on the rise in some developing countries It's common to associate cannabis use with affluent youth in wealthy societies. But the relationship between societal and family affluence and cannabis use appears to be changing. A study published online today in the scientific journal Addiction reveals that cannabis use is declining in rich countries but stable or increasing in developing countries.

The study looked at cannabis use among 15-year-old adolescents in thirty European and North American countries in 2002, 2006, and 2010. The overall results showed a significant decline in cannabis use. Affluent countries in Western and Southern Europe and North America (Belgium, Canada, Denmark, France, Germany, Ireland, Italy, Netherlands, Portugal, Spain, the United Kingdom, USA) showed a decrease in frequent cannabis consumption among 15-year-old boys and/or girls.

But the emerging market countries that have recently experienced a rapid increase in their GDP showed stable or increasing cannabis use. In three of the twelve former communist countries in Eastern, Central, and Southern Europe, cannabis use increased among boys (FYR Macedonia, Latvia, Lithuania) and in one, it increased among girls (Russia). In the remaining nine countries, cannabis use among 15-year-olds appears to have stabilized over time. Adolescents from less affluent countries seem to have adopted consumption patterns consistent with their peers in richer countries.

The recent decrease in cannabis use in richer countries and among higher socioeconomic status groups could be explained by the recently increased attention on the harmful effects of substance use for young people and the subsequent implementation of public health prevention measures aimed at reducing substance use. Thus, while wealth in earlier decades fostered adolescent substance use due to increased opportunities for use, nowadays, national health policies in wealthy countries may have contributed to the observed decrease of adolescent cannabis use.

### For editors: Bogt TFM ter, Looze M de, Molcho M, Godeau E, Hublet A, Kokkevi A, Kuntsche E, Gabhainn SN, Franelic IP, Simons-Morton B, Sznitman S, Vieno A, Vollebergh W, and Pickett W. Do societal wealth, family affluence, and gender account for trends in adolescent cannabis use?: A 30-country cross-national study. Addiction, 108: doi: 10.1111/add.12373 This paper is free to download for one month after publication from the Wiley Online Library: http://onlinelibrary.wiley.com/journal/10.1111/%28ISSN%291360-0443/earlyview or by contacting Jean O'Reilly, Editorial Manager, Addiction, jean@addictionjournal.org, tel +44 (0)20 7848 0853.


ELSE PRESS RELEASES FROM THIS DATE:

New crizotinib side-effect

2013-11-21
New crizotinib side-effect Reduced measures of kidney function during treatment (recovery after) A University of Colorado Cancer Center study published today in the journal Cancer shows that using crizotinib to treat ALK positive non-small cell lung cancer (NSCLC) ...

Scripps oceanography researchers engineer breakthrough for biofuel production

2013-11-21
Scripps oceanography researchers engineer breakthrough for biofuel production Prospects for economic and sustainable fuel alternative enhanced with discovery Researchers at Scripps Institution of Oceanography at UC San Diego have developed a method ...

Study shines light on what makes digital activism effective

2013-11-21
Study shines light on what makes digital activism effective Digital activism is usually nonviolent and tends to work best when social media tools are combined with street-level organization, according to new research from the University of Washington. The findings ...

Preventing marijuana-induced memory problems with over-the-counter painkillers

2013-11-21
Preventing marijuana-induced memory problems with over-the-counter painkillers In addition to being used as a recreational drug, marijuana has been used for centuries to treat a variety of conditions, from chronic pain to epilepsy. However, its medical value is greatly limited ...

Fungus-fighting drug may make mild flu meaner

2013-11-21
Fungus-fighting drug may make mild flu meaner Mice given a drug commonly used in patients to fight systemic fungal infections more often succumb to what would otherwise be a mild case of the flu. The evidence reported in the Cell Press journal Cell Reports on November 21st ...

Newborn babies have built-in body awareness ability

2013-11-21
Newborn babies have built-in body awareness ability

Scientists identify gene that regulates body weight in humans and mice

2013-11-21
Scientists identify gene that regulates body weight in humans and mice Research has pointed to the importance of genetic factors in human obesity and has shown that heritability plays a role in 40% to 90% of cases. Now investigators reporting online November 21 in The American ...

Scientists find the invisibility cloak that shields HIV-1 from the immune system

2013-11-21
Scientists find the invisibility cloak that shields HIV-1 from the immune system Of the two major types of HIV, only one, HIV-1, typically causes AIDS in infected people who don't receive treatment. A study published by Cell Press November 21st in the journal Immunity reveals ...

Stanford scientists think mysterious virus could be a signal of a weak immune system

2013-11-21
Stanford scientists think mysterious virus could be a signal of a weak immune system Genomic analysis of transplant patients finds an opportunistic microorganism whose elevated presence could be used an indicator in treatment STANFORD, Calif. — More than ...

Different cellular mechanisms behind regenerated body parts

2013-11-21
Different cellular mechanisms behind regenerated body parts Scientists at Karolinska Institutet in Sweden have discovered that two separate species of salamander differ in the way their muscles grow back in lost body parts. Their findings on the species-specific ...

LAST 30 PRESS RELEASES:

Hormone therapy reshapes the skeleton in transgender individuals who previously blocked puberty

Evaluating performance and agreement of coronary heart disease polygenic risk scores

Heart failure in zero gravity— external constraint and cardiac hemodynamics

Amid record year for dengue infections, new study finds climate change responsible for 19% of today’s rising dengue burden

New study finds air pollution increases inflammation primarily in patients with heart disease

AI finds undiagnosed liver disease in early stages

The American Society of Tropical Medicine and Hygiene and the Bill & Melinda Gates Foundation announce new research fellowship in malaria genomics in honor of professor Dominic Kwiatkowski

Excessive screen time linked to early puberty and accelerated bone growth

First nationwide study discovers link between delayed puberty in boys and increased hospital visits

Traditional Mayan practices have long promoted unique levels of family harmony. But what effect is globalization having?

New microfluidic device reveals how the shape of a tumour can predict a cancer’s aggressiveness

Speech Accessibility Project partners with The Matthew Foundation, Massachusetts Down Syndrome Congress

Mass General Brigham researchers find too much sitting hurts the heart

New study shows how salmonella tricks gut defenses to cause infection

Study challenges assumptions about how tuberculosis bacteria grow

NASA Goddard Lidar team receives Center Innovation Award for Advancements

Can AI improve plant-based meats?

How microbes create the most toxic form of mercury

‘Walk this Way’: FSU researchers’ model explains how ants create trails to multiple food sources

A new CNIC study describes a mechanism whereby cells respond to mechanical signals from their surroundings

Study uncovers earliest evidence of humans using fire to shape the landscape of Tasmania

Researchers uncover Achilles heel of antibiotic-resistant bacteria

Scientists uncover earliest evidence of fire use to manage Tasmanian landscape

Interpreting population mean treatment effects in the Kansas City Cardiomyopathy Questionnaire

Targeting carbohydrate metabolism in colorectal cancer: Synergy of therapies

Stress makes mice’s memories less specific

Research finds no significant negative impact of repealing a Depression-era law allowing companies to pay workers with disabilities below minimum wage

Resilience index needed to keep us within planet’s ‘safe operating space’

How stress is fundamentally changing our memories

Time in nature benefits children with mental health difficulties: study

[Press-News.org] Cannabis use among teens is on the rise in some developing countries