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July 13, 2011

Incorrect Frequency of Marijuana Use Reported in: Teen Marijuana Use on the Rise

JAMA. 2011;306(2):162. doi:10.1001/jama.2011.951

Incorrect Frequency of Marijuana Use Reported: In the Medical News & Perspectives article entitled “Teen Marijuana Use on the Rise,” published in the January 19, 2011, issue of JAMA (2011;305[3]:242), the first sentence of the third paragraph should read “Marijuana use increased across all 3 grades, continuing a 3-year trend, with 6.1% of 12th graders reporting daily or near-daily use in the past 30 days compared with 5.2% in 2009; 3.3% of 10th graders vs 2.8% in 2009; and 1.2% of eighth graders vs 1.0% in 2009.” This article was corrected for errors online on June 7, 2011.