Do medical marijuana laws increase marijuana use? Replication study and extension.

@article{Harper2012DoMM,
  title={Do medical marijuana laws increase marijuana use? Replication study and extension.},
  author={Samuel Harper and Erin C. Strumpf and Jay S Kaufman},
  journal={Annals of epidemiology},
  year={2012},
  volume={22 3},
  pages={207-12}
}
PURPOSE To replicate a prior study that found greater adolescent marijuana use in states that have passed medical marijuana laws (MMLs), and extend this analysis by accounting for confounding by unmeasured state characteristics and measurement error. METHODS We obtained state-level estimates of marijuana use from the 2002 through 2009 National Survey on Drug Use and Health. We used 2-sample t-tests and random-effects regression to replicate previous results. We used difference-in-differences… CONTINUE READING
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