Skip to main content
. 2020 Nov 16;12:1075–1088. doi: 10.2147/IJWH.S266540

Table 1.

Characteristics of the Overall Study Sample (n=2,247), 2015 to 2017 National Survey of Drug Use and Health

Characteristics %a (95% CI)
Age Group (years old)
14 to 17 1.7 (1.1, 2.3)
18 to 29 32.4 (30.2, 34.6)
30 to 44 65.9 (63.6, 68.1)
Self-identified race/ethnicity
Non-Hispanic White 55.4 (52.1. 58.7)
Non-Hispanic Black 14.9 (13.3, 16.6)
Non-Hispanic Other 9.4 (7.5, 11.2)
Hispanic 20.3 (17.7, 23.0)
Population density
Large metropolitan 55.2 (52.4, 58.1)
Small metropolitan 39.6 (36.7, 42.2)
Non-metropolitan 5.2 (4.1, 6.3)
Poverty level
Living in poverty 23 (20.7, 25.0)
Income up to 2X FPTb 19.7 (17.4, 22.0)
Income more than 2X FPT 57.3 (54.6, 60.2)
Residence in medical marijuana
No 48.2 (45.0, 51.4)
Yes 51.8 (48.6, 55.0)
Alcohol and/or tobacco use in the past
Neither 79.9 (78.3, 81.6)
Alcohol use only 6.7 (5.3, 8.0)
Tobacco use only 10.6 (9.2, 12.0)
Alcohol and tobacco use 2.8 (1.8, 3.7)
Past 30-day use of drugs other than cannabis
No 98.1 (97.3, 99.0)
Yes 1.9 (1.0, 2.7)
Trimester of pregnancy
First 32.3 (29.0, 35.4)
Second 35 (32.4, 37.7)
Third 32.7 (29.9, 35.5)
Self-reported overall health status
Excellent to good 94.8 (93.6. 95.9)
Fair to Poor 5.2 (4.1, 6.4)
Past 12-months MDEc
No 93 (91.7, 94.3)
Yes 7 (5.7, 8.3)
Year of the survey
2015 33 (30.6, 35.6)
2016 33 (31.2, 35.7)
2017 34 (30.7, 36.2)
Risk perception of weekly cannabis use
Any risk 78.4 (76.1, 80.5)
No risk 21.6 (19.4, 23.8)
Past 30-day cannabis use
No 94.7 (93.5, 95.8)
Yes 5.3 (4.2, 6.5)
Mean number of days of cannabis use in the overall sample 0.8 (0.6, 1.1)
Mean number of days of cannabis use among past 30-day users 15.6 (13.5, 17.7)

Notes: aEstimates from weighted analyses; bFederal Poverty Threshold; cMajor Depressive Episode as defined by DSM-IV.