Lifewatch: Cocaine and marijuana use

WILMINGTON -- According to a survey of 17 countries, America has the highest level of illegal cocaine and marijuana use.

The study is based out of Australia at the University of New South Wales.

The study is published in this week's PLOS Medicine and based on data from the World Health Organization.

Authors found about 16% of Americans have used cocaine in their lifetime, the highest level of any country worldwide.

According to the study, marijuana use is also highest in the United States with close to half of Americans trying it.

New Zealand has the second highest levels of cocaine and marijuana use.

The survey also found differences in both legal and illegal drug use among different socioeconomic groups.

Reported by Kristy Ondo