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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: Int J Drug Policy. 2014 Feb 2;25(3):424–435. doi: 10.1016/j.drugpo.2014.01.017

Table 5.

Supplementary analyses: model-based estimates of variables explaining intention to use cannabis among recent users.

Last 12 Month Users Weighted N = 3,025 Last 30 Day Users Weighted N = 1,937

Would Use as Often (N = 1,695) Would Use More Often (N = 656) Would Use as Often (N = 1,267) Would Use More Often (N = 506)

AOR 95% CI) AOR 95% CI) AOR 95% CI) AOR 95% CI)
Age
 <18 1.00 1.00 1.00 1.00
 ≥18 0.80 (0.63, 1.01) 0.80 (0.60, 1.06) 0.99 (0.64, 1.53) 0.91 (0.57, 1.46)

Sex
 Male 1.00 1.00 1.00 1.00
 Female 0.69** (0.54, 0.88) 0.57*** (0.42, 0.76) 0.54** (0.34, 0.85) 0.49*** (0.30, 0.80)

Race/Ethnicity
 White 1.00 1.00 1.00 1.00
 Black 1.00 (0.66, 1.52) 1.16 (0.70, 1.91) 1.25 (0.61, 2.55) 1.63 (0.75, 3.55)
 Hispanic 0.56** (0.39, 0.80) 0.53** (0.34, 0.84) 0.33*** (0.18, 0.62) 0.31** (0.20, 0.77)

Population Density
 Non-MSA 1.00 1.00 1.00 1.00
 Small MSA 1.22 (0.89, 1.68) 1.15 (0.80, 1.67) 1.55 (0.87, 2.76) 1.22 (0.66, 2.26)
 Large MSA 1.12 (0.80, 1.58) 1.02 (0.68, 1.53) 1.11 (0.62, 2.00) 0.95 (0.50, 1.80)

Parent Education
 Low Education 1.00 1.00 1.00 1.00
 Medium Education 0.88 (0.65, 1.20) 0.91 (0.63, 1.30) 0.87 (0.50, 1.52) 0.98 (0.53, 1.78)
 High Education 1.47* (1.08, 2.00) 1.45* (1.01, 2.09) 1.44 (0.78, 2.63) 1.67 (0.87, 3.19)

Religiosity
 Low 1.00 1.00 1.00 1.00
 Medium 0.61** (0.45, 0.84) 0.72 (0.50, 1.03) 0.94 (0.51, 1.70) 1.09 (0.58, 2.07)
 High 0.45*** (0.31, 0.64) 0.50** (0.33, 0.77) 0.37** (0.20, 0.68) 0.39** (0.20, 0.78)

Plan to Graduate College
 Definitely Not or Probably Not 1.00 1.00 1.00 1.00
 Probably 1.10 (0.77, 1.57) 0.91 (0.60, 1.38) 1.36 (0.71, 2.59) 1.08 (0.54, 2.14)
 Definitely 0.86 (0.62, 1.19) 0.75 (0.51, 1.09) 0.95 (0.54, 1.66) 0.74 (0.41, 1.35)

Evenings Out Per Week for Fun
 0–1 1.00 1.00 1.00 1.00
 2–3 1.43* (1.02, 2.00) 1.20 (0.81, 1.79) 1.85 (0.99, 3.46) 1.60 (0.82, 3.13)
 4–7 1.59* (1.11, 2.28) 1.70* (1.12, 2.58) 1.47 (0.77, 2.81) 1.49 (0.75, 2.95)

Lifetime Cigarette Use
 No 1.00 1.00 1.00 1.00
 Yes 1.83*** (1.41, 2.38) 2.25*** (1.65, 3.06) 2.97*** (1.86, 4.76) 3.90*** (2.31, 6.60)

Alcohol Use in Last 12 Months
 No 1.00 1.00 1.00 1.00
 Yes 1.01 (0.63, 1.62) 0.81 (0.47, 1.41) 0.63 (0.23, 1.74) 0.63 (0.22, 1.84)

Friends Disapproval of Cannabis Use
 Don’t Disapprove 1.00 1.00 1.00 1.00
 Disapprove 0.18*** (0.13, 0.25) 0.19*** (0.12, 0.29) 0.12*** (0.07, 0.22) 0.17*** (0.09, 0.34)
 Strongly Disapprove 0.10*** (0.06, 0.16) 0.12*** (0.07, 0.20) 0.09*** (0.04, 0.20) 0.17*** (0.08, 0.35)

NagelkerkeR2 21% 17%
Correct Classification Rate 60% 66%

Note. The comparison group is “Would Not Use;” (N for 12 Month Users = 674 and N for 30 Day Users = 164). Adjusted Odds Ratios (AORs) were adjusted for all other covariates. We adjusted for cohort when computing both ORs and AORs. Results from missing data indicators not presented. Weighted percentages are rounded so they do not always add up to exactly 100%. MSA = metropolitan statistical area.

*

p< 0.05,

**

p< 0.01,

***

p< 0.001