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Comment & Response
February 17, 2020

Underexplored Heterogeneity and Publication Bias for the Electronic Cigarette and Marijuana Use Association

Author Affiliations
  • 1Department of Anatomy, Qiqihar Medical University, Qiqihar, Heilongjiang, China
  • 2Department of Medical Service Supervision, Qiqihar Health Inspection Bureau, Qiqihar, Heilongjiang, China
  • 3Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
JAMA Pediatr. Published online February 17, 2020. doi:10.1001/jamapediatrics.2019.6080

To the Editor We read with great interest the systematic review and meta-analysis by Chadi et al,1 who examined the association between electronic cigarette (e-cigarette) and marijuana use in adolescents and young adults, and they found that past or current e-cigarette users are more likely to be subsequent marijuana users. This finding signifies the importance of quitting e-cigarettes to curb the increasing use of marijuana among young people.

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