Miech, R. A., Schulenberg, J. E., Johnston, L. D., Bachman, J. G., O'Malley, P. M., & Patrick, M. E. (December 17, 2018). "National Adolescent Drug Trends in 2018." Monitoring the Future: Ann Arbor, MI. Stats source is linked from the charts index. From footnotes: "Daily use is defined as use on 20 or more occasions in the past 30 days except for cigarettes and smokeless tobacco, for which actual daily use is measured." This particular footnote is for more than one chart. Smokeless tobacco is not measured in the marijuana and cigarettes chart. That NIDA chart is found in this NIDA article.
Miech, R. A., Schulenberg, J. E., Johnston, L. D., Bachman, J. G., O'Malley, P. M., & Patrick, M. E. (December 17, 2018). "National Adolescent Drug Trends in 2018." Monitoring the Future: Ann Arbor, MI. Stats source is linked from the charts index. From footnotes: "Daily use is defined as use on 20 or more occasions in the past 30 days except for cigarettes and smokeless tobacco, for which actual daily use is measured." This particular footnote is for more than one chart. Smokeless tobacco is not measured in the marijuana and cigarettes chart. That NIDA chart is found in this NIDA article.
Miech, R. A., Schulenberg, J. E., Johnston, L. D., Bachman, J. G., O'Malley, P. M., & Patrick, M. E. (December 17, 2018). "National Adolescent Drug Trends in 2018." Monitoring the Future: Ann Arbor, MI. Stats source is linked from the charts index. From footnotes: "Daily use is defined as use on 20 or more occasions in the past 30 days except for cigarettes and smokeless tobacco, for which actual daily use is measured." This particular footnote is for more than one chart. Smokeless tobacco is not measured in the marijuana and cigarettes chart. That NIDA chart is found in this NIDA article.
