Table 3, Comparison of key variables for NCCS versus validated samples - Modeling the Probability of Fraud in Social Media in a National Cannabis Survey

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Table 3Comparison of key variables for NCCS versus validated samples

Source	Ever cannabis use, % (SE)	Current cannabis use, % (SE)
NCCS combined sample^a	58.3% (1.4)	17.0% (1.3)
NCCS ABS (Mail 1.1 and web)	56.1% (2.9)	15.9% (2.9)
NCCS SM 1.0 and 2.0 completes^a	60.0% (1.3)	17.9% (1.0)
2016 NSDUH data^b	47.0% (0.35)	10.9% (0.18)
2017 NSDUH data^b	48.2% (0.36)	11.5% (0.19)
2017 Yahoo News/Marist Poll^c	52% (NR)	22% (NR)
2016 Gallup Poll^d	43% (NR)	13% (NR)

: Abbreviations: NR = not reported.
: Note: All NCCS estimates in this table are weighted according to the weights designed for the combined sample.
a: Social media responses deemed fraudulent (either during initial fraud detection procedures or through application of the fraud regression model) are not included in this table.
b: Substance Abuse and Mental Health Services Administration (SAMHSA). Results from the 2017 National Survey on Drug Use and Health: detailed tables. Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration; 2018 [cited 2020 Oct 8]. Available from: https://www.samhsa.gov/data/sites/default/files/cbhsq-reports/NSDUHDetailedTabs2017/NSDUHDetailedTabs2017.pdf
c: Marist Poll. Yahoo News/Marist Poll: weed & the American family. 2017 [cited 2020 Oct 2]. Available from: http://maristpoll.marist.edu/wp-content/misc/Yahoo%20News/20170417_Summary%20Yahoo%20News-Marist%20Poll_Weed%20and%20The%20American%20Family.pdf
d: McCarthy J. One in eight US adults say they smoke marijuana. Gallup; 2016 Aug 8 [cited 2020 Oct 2]. Available from: https://news.gallup.com/poll/194195/adults-say-smoke-marijuana.aspx

From: Modeling the Probability of Fraud in Social Media in a National Cannabis Survey

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Modeling the Probability of Fraud in Social Media in a National Cannabis Survey [Internet].

Dutra LM, Farrelly MC, Bradfield B, et al.

Research Triangle Park (NC): RTI Press; 2021 Sep.

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