Table 1.
Sample characteristics of non-cannabis users by cohort, 2007–2011 (Weighted N= 6,116).
| Predictor | 2007 N = 1,296 |
2008 N = 1,230 |
2009 N = 1,236 |
2010 N = 1,222 |
2011 N = 1,132 |
χ2(df) | Combined N = 6,116 |
|---|---|---|---|---|---|---|---|
| Age
| |||||||
| <18 | 41.9 | 42.1 | 44.8 | 43.8 | 45.3 | 5.56(8) | 43.5 |
| ≥18 | 57.2 | 57.3 | 54.2 | 55.0 | 53.8 | 55.5 | |
| Missing Data | 1.0 | 0.6 | 1.1 | 1.1 | 0.9 | 0.9 | |
|
| |||||||
| Sex
| |||||||
| Male | 40.3 | 41.2 | 40.5 | 43.4 | 43.3 | 6.16(8) | 41.7 |
| Female | 55.7 | 55.4 | 54.8 | 52.0 | 52.5 | 54.1 | |
| Missing Data | 4.0 | 3.4 | 4.7 | 4.5 | 4.2 | 4.2 | |
|
| |||||||
| Race/Ethnicity
| |||||||
| White | 62.4 | 59.4 | 60.9 | 60.5 | 56.5 | 30.20(12)** | 60.0 |
| Black | 10.8 | 11.8 | 9.6 | 11.7 | 12.1 | 11.2 | |
| Hispanic | 14.1 | 16.2 | 16.4 | 15.3 | 12.5 | 14.9 | |
| Missing Data | 12.6 | 12.6 | 13.1 | 12.6 | 18.9 | 13.9 | |
|
| |||||||
| Population Density+
| |||||||
| Non-MSA | 23.9 | 22.4 | 22.1 | 23.2 | 22.0 | 9.94(8) | 22.7 |
| Small MSA | 45.6 | 50.7 | 51.6 | 47.0 | 48.7 | 48.7 | |
| Large MSA | 30.5 | 26.9 | 26.3 | 29.8 | 29.3 | 28.6 | |
|
| |||||||
| Parent Education
| |||||||
| Low Education | 29.8 | 29.2 | 28.8 | 27.1 | 24.5 | 14.22(12) | 27.9 |
| Medium Education | 27.3 | 29.7 | 28.3 | 26.8 | 28.1 | 28.0 | |
| High Education | 39.2 | 37.7 | 38.6 | 41.2 | 43.4 | 39.9 | |
| Missing Data | 3.8 | 3.4 | 4.3 | 5.0 | 3.9 | 4.1 | |
|
| |||||||
| Religiosity
| |||||||
| Low | 23.4 | 25.0 | 27.0 | 25.3 | 27.6 | 14.62(12) | 25.6 |
| Medium | 21.5 | 19.2 | 20.3 | 21.2 | 22.5 | 20.9 | |
| High | 31.1 | 31.3 | 31.4 | 31.8 | 26.6 | 30.5 | |
| Missing Data | 24.1 | 24.5 | 21.3 | 21.7 | 23.4 | 23.0 | |
|
| |||||||
| Plan to Graduate College
| |||||||
| Definitely Not or Probably Not | 13.6 | 12.4 | 12.0 | 11.1 | 11.3 | 24.30(12)* | 12.1 |
| Probably | 21.9 | 20.1 | 17.0 | 18.6 | 23.5 | 20.2 | |
| Definitely | 60.9 | 63.2 | 65.6 | 65.3 | 62.2 | 63.4 | |
| Missing Data | 3.5 | 4.3 | 5.4 | 5.0 | 3.0 | 4.2 | |
|
| |||||||
| Evenings Out Per Week for Fun
| |||||||
| 0–1 | 31.0 | 30.6 | 31.5 | 30.4 | 37.9 | 19.95(12) | 32.2 |
| 2–3 | 49.6 | 50.2 | 49.0 | 51.0 | 47.1 | 49.4 | |
| 4–7 | 15.2 | 15.6 | 15.6 | 14.7 | 12.5 | 14.8 | |
| Missing Data | 4.3 | 3.5 | 3.9 | 3.8 | 2.4 | 3.6 | |
|
| |||||||
| Lifetime Cigarette Use
| |||||||
| No | 75.6 | 77.5 | 80.8 | 84.1 | 85.7 | 41.09(8)*** | 80.8 |
| Yes | 23.1 | 22.1 | 18.6 | 15.6 | 14.1 | 18.8 | |
| Missing Data | 0.3 | 0.4 | 0.5 | 0.3 | 0.1 | 0.3 | |
|
| |||||||
| Alcohol Use in Last 12 Months
| |||||||
| No | 51.9 | 50.3 | 50.9 | 54.1 | 54.3 | 6.11(8) | 52.3 |
| Yes | 45.2 | 45.9 | 46.1 | 43.0 | 42.4 | 44.6 | |
| Missing Data | 2.9 | 3.8 | 3.0 | 2.9 | 3.3 | 3.2 | |
|
| |||||||
| Friends Disapproval of Cannabis Use
| |||||||
| Don’t Disapprove | 14.7 | 15.9 | 16.6 | 21.5 | 21.9 | 35.61(12)*** | 18.0 |
| Disapprove | 22.3 | 22.0 | 23.3 | 21.3 | 21.2 | 22.0 | |
| Strongly Disapprove | 52.6 | 53.1 | 49.9 | 45.1 | 47.8 | 49.8 | |
| Missing Data | 10.5 | 9.0 | 10.1 | 12.1 | 9.1 | 10.2 | |
|
| |||||||
| Would Try Cannabis if Legal to Use
| |||||||
| No | 91.0 | 90.4 | 89.9 | 88.2 | 89.1 | 4.55(4) | 89.7 |
| Yes | 9.0 | 9.6 | 10.1 | 11.8 | 10.9 | 10.3 | |
Note. Rao-Scott Chi-squares (χ2) are design-based to correct for the complex survey design. Weighted percentages are rounded so they do not always add up to exactly 100%.
+
Population density had no missing data so no missing data category was considered in chi-square analysis. MSA = metropolitan statistical area.
**
p< 0.01,
***
p< 0.001