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Results from the 2021 National Survey on Drug Use and Health: Detailed Tables
Prevalence Estimates, Standard Errors, and Sample Sizes

Appendix C: List of Contributors

These tables were prepared by the Substance Abuse and Mental Health Services Administration (SAMHSA), Center for Behavioral Health Statistics and Quality, and by RTI International (a registered trademark and a trade name of Research Triangle Institute). Work by RTI was performed under Contract No. HHSS283201700002C. Marlon Daniel served as the government project officer and as the contracting officer representative, and David Hunter served as the RTI project director.

These tables were drafted by RTI and reviewed at SAMHSA. Production of the tables at SAMHSA was managed by Douglas Richesson and Jennifer Hoenig.

Contributors and reviewers at RTI, listed alphabetically, included Tricia Adams, Katherine J. Asman, Kimberly Ault, Stephanie N. Barnett, Michael R. Bradshaw, Kristen G. Brown, Wallace A. Campbell, Lisa A. Carpenter, Patrick (Pinliang) Chen, Chuchun Chien, Jennifer Cooney, Devon S. Cribb, Lanting Dai, Teresa R. Davis, Susan L. Edwards, Barbara J. Felts, Jessica L. Franks, Zachary French, Julia M. Gable, Harper Gordek, Paxton S. Gorsage, Rebecca K. Granger, Rachel M. Harter, Erica L. Hirsch, Ruby Johnson, Phil Kott, Larry A. Kroutil, Philip K. Lee, Charlotte Looby, Nicole A. Mack, Peilan Chen Martin, Andrew S. Moore, Lisa E. Packer, Michael A. Penne, Andy Peytchev, Brenda K. Porter (retired from RTI), Jeremy D. Porter, Rosanna S. Quiroz, Danny Ryan, Ana Saravia, Neeraja S. Sathe, Jennifer H. Schoden, Victoria M. Scott, Kathryn E. Spagnola, Akhil Vaish, Lauren K. Warren, Matthew J. Westlake, Matt Williams, and Carol L. Woodell. Also at RTI, Farrah Bullock Mann formatted the tables; Jessica Burch, Claudia Clark, Margaret A. Johnson, and Amber M. Rohloff provided editorial assistance; and Debbie Bond, Kimberly H. Cone, Teresa Mink, Daniel Occoquan, Pamela G. Tuck, and Cheryl L. Velez provided web conversion and/or document production support.

SAMHSA's mission is to reduce the impact of substance abuse and mental illness on America's communities.
1-877-SAMHSA-7 (1-877-726-4727) | 1-800-487-4889 (TDD) | www.samhsa.gov

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