According to a study that was published in Annals of Internal Medicine, 1 in 7 adults in the United States used marijuana in the past year.
That equates to about 14% of adults using the drug and smoking was the most frequently used form.
Stacey Steigerwald, MSSA, from Northern California Institute for Research and Education and San Francisco VA Medical Center, and her colleagues wrote:
“Marijuana is commercially available in increasingly novel forms, such as edibles and concentrates, and with tetrahydrocannabinol (THC) content at levels that have unknown health effects… Despite legalization of recreational marijuana in some states and the development of a multibillion dollar cannabis industry, national data on the prevalence of use of other forms of marijuana are not available.”
Steigerwald and her colleagues had administered a survey to adults aged 18 and over last year in order to see how many adults use marijuana and which forms they used.
The survey had roughly 9,000 respondents and found that marijuana was used by 14.6% of respondents in the past year, including 8.7% of respondents in 30 days before answering the survey.
About 14% of adults used marijuana in the past year were in the U.S.
