American teenagers are not using marijuana in greater numbers even as states have legalized the drug for adult recreational use, a third national survey has found.
In fact, past-month marijuana use is on a two-decade slide among high school students, according to a statistical analysis of results from the Centers for Disease Control and Prevention's 2015 Youth Risk Behavior Survey, published Thursday.
The survey is conducted every other year among a representative sample of U.S. high school students. The 2015 results indicate a statistically significant downward trend in past-month marijuana use since 1995 and a downward trend in lifetime use since 1997.
Despite increasingly liberal state laws and public attitudes, students' reported lifetime pot use fell more than 2 percentage points to 38.6 percent in 2015.
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