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. Author manuscript; available in PMC: 2019 Mar 4.
Published in final edited form as: Ann Intern Med. 2018 Jul 24;169(5):282–290. doi: 10.7326/M18-0810

Table 3.

Views of Persons in the United States on Important Public Health Domains Pertaining to Marijuana Use*

Variable U.S. Adults (n = 9003) Past-Year Use Age
Yes (n = 1270) No (n = 7733) 18–34 y (n = 2543) 35–49 y (n = 2172) 50–64 y (n = 2466) ≥65 y (n = 1822)
How addictive is marijuana?
 Very 25.9 4 30 22 25 24 32
 Somewhat 50.1 42 51 49 49 53 49
 Not at all 22.4 53 17 27 25 22 18;
How safe is marijuana use for pregnant women?
 Completely unsafe 76.3 46 81 69 70 79 85
 Somewhat unsafe 15.8 30 13 19 19 15 11
 Somewhat safe 5.0 16 3.1 8.3 6.7 3.4 2.4
 Completely safe 2.3 7.9 1.4 3.4 3.6 1.6 1.1
How does driving under the influence of marijuana compare with driving under the influence of alcohol?
 Much less safe 15.2 5.2 17 12 13 15 19
 Somewhat less safe 9.5 5.5 10 7.5 7.1 10 13
 Equally safe 44.4 27 47 41 45 46 45
 Somewhat safer 17.1 29 15 22 17 17 14
 Much safer 10.5 32 6.9 14 14 8.8 6
How does smoking 1 marijuana joint per day compare with smoking 1 cigarette per day?
 Much less safe 17.9 4.3 20 13 15 17 25
 Somewhat less safe 14.9 6.4 16 9.9 13 16 19
 Equally safe 25.6 14 28 21 25 29 27
 Somewhat safer 18.8 21 18 23 20 18 15
 Much safer 19.4 53 14 30 24 16 11
How safe is exposing adults to secondhand smoke from marijuana?
 Completely unsafe 49.3 11 56 38 44 52 60
 Somewhat unsafe 31.9 39 31 34 32 33 29
 Somewhat safe 11.6 28 8.9 17 15 9.8 6.6
 Completely safe 6.4 22 3.7 9.8 8.4 5.1 3.4
How safe is exposing children to secondhand smoke from marijuana?
 Completely unsafe 72.8 48 77 65 67 75 81
 Somewhat unsafe 18.9 31 17 22 21 19 15
 Somewhat safe 5.2 14 3.7 8 7.1 4 2.5
 Completely safe 2.4 6.6 1.7 3.6 3.8 1.5 1
How does secondhand smoke from marijuana compare with secondhand smoke from tobacco?
 Much less safe 16.4 4.5 18 12 l.» 1? 23
 Somewhat less safe 13.3 4.7 15 9.5 16 14” 19
 Equally safe 29.8 16 32 26 28 33 31
 Somewhat safer 20.7 28 20 25 23 21 16
 Much safer 16.6 46 12 25 22 12 9.7
How does smoking 1 marijuana joint per day compare with drinking 1 glass of wine per day?
 Much less safe 32.1 8.4 36 25 28 33 41
 Somewhat less safe 23.7 11 26 23 23 24 25
 Equally safe 28.0 41 26 30 29 30 24
 Somewhat safer 6.2 13 4.9 8.5 6.6 6.2 4.1
 Much safer 7.3 24 4.4 11 11 4.7 3.9
*

Values are weighted percentages.