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. Author manuscript; available in PMC: 2016 Apr 1.
Published in final edited form as: Drug Alcohol Depend. 2015 Feb 17;149:232–244. doi: 10.1016/j.drugalcdep.2015.02.009

Table 3c.

Perceived great risk of regular cannabis use among past year daily cannabis users, NSDUHa 2002–2012

n 2002
wt% (SE)
2003
wt% (SE)
2004
wt% (SE)
2005
wt% (SE)
2006
wt% (SE)
2007
wt% (SE)
2008
wt% (SE)
2009
wt% (SE)
2010
wt% (SE)
2011
wt% (SE)
2012
wt% (SE)
Total 15,472 3.7 (0.8) 4.7 (1.1) 5.5 (1.4) 3.6 (0.6) 3.6 (0.8) 3.5 (0.8) 4.0 (0.8) 2.8 (0.8) 1.3 (0.4) 1.7 (0.5) 1.7 (0.5)
12–17 2,601 5.9 (1.6) 6.3 (2.0) 5.4 (2.3) 6.5 (2.6) 5.2 (1.7) 7.8 (2.4) 7.2 (1.7) 5.2 (1.7) 2.7 (1.2) 2.7 (0.8) 5.1 (2.0)
18–25 10,060 2.4 (0.7) 4.2 (1.0) 4.0 (0.9) 3.9 (0.9) 3.5 (0.8) 2.5 (0.6) 4.2 (1.0) 1.8 (0.6) 1.1 (0.5) 1.2 (0.3) 1.1 (0.3)
26–49 2,547 3.7 (1.7) 5.4 (2.1) 8.3 (3.3) 3.5 (1.4) 3.6 (1.7) 4.4 (1.8) 3.5 (1.5) 3.9 (1.8) 1.6 (0.8) 1.9 (1.0) 2.5 (1.1)
50+ 264 8.4 (6.5) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 2.7 (2.7) 0 (0) 0 (0) 2.0 (1.6) 0.4 (0.4)
White 10,442 2.5 (0.9) 4.2 (1.2) 3.7 (1.3) 3.1 (0.8) 2.1 (0.7) 2.3 (0.4) 3.0 (0.7) 1.8 (0.9) 0.7 (0.4) 1.5 (0.6) 0.7 (0.3)
12–17 1,691 2.7 (1.2) 6.3 (2.5) 4.7 (2.8) 4.9 (2.3) 1.5 (1.0) 6.4 (2.9) 5.4 (2.3) 5.5 (2.4) 2.3 (1.5) 2.4 (0.7) 4.9 (2.5)
18–25 6,790 1.2 (0.5) 3.7 (1.1) 3.0 (0.8) 3.0 (0.9) 2.3 (0.8) 2.3 (0.7) 4.1 (1.2) 0.6 (0.3) 0.8 (0.6) 0.7 (0.3) 0 (0)
26–49 1,752 2.8 (1.8) 4.8 (2.5) 5.4 (2.9) 3.6 (1.7) 2.2 (1.6) 2.0 (0.6) 2.0 (1.0) 3.0 (2.2) 0.5 (0.3) 1.6 (1.1) 1.3 (0.8)
50+ 209 8.4 (6.5) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)
Black 2,068 5.4 (2.6) 7.6 (3.0) 17.8 (7.9) 4.6 (1.1) 9.0 (3.4) 9.8 (4.2) 4.1 (1.5) 4.6 (2.0) 1.0 (0.6) 2.0 (1.0) 6.3 (2.8)
12–17 292 10.0 (7.3) 2.6 (2.5) 5.8 (3.9) 0.5 (0.5) 22.9 (9.7) 21.9 (10.0) 23.0 (9.7) 8.6 (6.0) 0.7 (0.7) 1.2 (1.3) 12.8 (9.6)
18–25 1,359 4.2 (2.1) 7.8 (3.3) 8.8 (3.9) 6.4 (4.1) 8.6 (2.9) 4.8 (2.2) 5.6 (2.1) 6.2 (3.2) 1.7 (0.9) 2.3 (0.9) 4.6 (1.6)
26–49 392 5.6 (4.5) 8.5 (5.1) 32.2 (16.8) 5.1 (4.2) 7.2 (5.8) 15.5 (8.9) 3.7 (3.2) 2.9 (2.9) 0.8 (0.8) 2.4 (2.4) 8.2 (5.8)
50+ 25 -- 0 (0) -- 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)
Hispanic 1,760 9.8 (4.5) 2.9 (1.6) 5.0 (2.2) 4.5 (2.1) 6.2 (2.7) 2.5 (1.9) 9.2 (5.2) 6.4 (4.1) 4.9 (2.5) 2.9 (1.7) 0.8 (0.5)
12–17 381 6.3 (5.0) 1.6 (1.7) 0.7 (0.7) 19.9 (12.4) 5.0 (4.4) 6.6 (6.6) 6.9 (3.8) 1.9 (1.8) 3.8 (3.0) 5.8 (3.5) 1.0 (1.0)
18–25 1,154 9.5 (5.2) 4.5 (2.6) 6.5 (3.3) 4.5 (2.9) 6.9 (4.0) 0.2 (0.2) 4.2 (2.6) 1.5 (1.2) 1.6 (1.1) 2.2 (1.5) 1.4 (3.5)
26–49 210 12.7 (12.2) 0 (0) 4.5 (4.6) 0 (0) 7.1 (6.0) 4.2 (4.4) 17.8 (13.9) 11.0 (8.4) 13.7 (9.1) 4.3 (4.2) 0 (0)
50+ 15 -- 0 (0) -- 0 (0) 0 (0) -- -- -- 0 (0) 0 (0) 0 (0)
Other 1,202 7.2 (3.9) 6.8 (3.9) 4.7 (2.7) 5.0 (2.2) 4.1 (2.6) 0.5 (0.4) 8.4 (5.8) 3.2 (2.3) 1.5 (0.8) 0 (0) 4.0 (2.5)
12–17 237 32.9 (17.5) 25.5 (12.0) 30.3 (17.6) 0 (0) 7.8 (6.0) 1.3 (1.4) 6.7 (5.5) 5.4 (5.4) 15.6 (11.9) 0 (0) 5.2 (5.6)
18–25 757 0 (0) 2.8 (3.1) 0 (0) 8.5 (3.5) 0.6 (0.4) 0.7 (0.7) 1.6 (1.2) 6.3 (4.5) 1.1 (0.9) 0 (0) 1.2 (1.2)
26–49 193 0 (0) 9.8 (10.4) 2.9 (2.2) 0 (0) 8.5 (8.5) 0.3 (0.4) 2.0 (1.4) 0 (0) 0.8 (0.8) 0 (0) 4.5 (4.6)
50+ 15 -- 0 (0) -- 0 (0) -- 0 (0) -- 0 (0) 0 (0) 0 (0) 13.3 (15.3)

Note: Bolded text indicates statistically significant differences across 11 years at the Bonferroni-corrected p<0.002 level.

b

wt% = weighted percentage

c

SE = standard error