Table 1 Demographic Characteristics of Study Participants (weighted %, mean, and SD)
Panel 1: Sept.-Nov. 2014 (n = 60) | Panel 2: March-June 2015 (n = 89) | Panel 3: August-Oct. 2015 (n = 130) | Panel 4: March-April 2016 (n = 157) | p-value | |
|---|---|---|---|---|---|
Sex (%) | 0.99 | ||||
Female | 44% | 42% | 44% | 44% | |
Male | 56% | 58% | 56% | 56% | |
Race/ethnicity (%) | 0.32 | ||||
White | 78% | 76% | 79% | 77% | |
Black | 10% | 13% | 6% | 4% | |
Hispanic | 3% | 3% | 5% | 11% | |
Others/Missing | 10% | 8% | 10% | 9% | |
Age group (%) | 0.38 | ||||
18-29 | 32% | 42% | 40% | 37% | |
30-49 | 48% | 32% | 28% | 37% | |
50+ | 19% | 26% | 33% | 27% | |
Age of onset (%) | 0.71 | ||||
<=17 | 65% | 60% | 52% | 56% | |
18-25 | 28% | 32% | 39% | 33% | |
>=26 | 6% | 8% | 9% | 11% | |
Household income (%) | 0.06 | ||||
<50k | 68% | 73% | 60% | 60% | |
50-80k | 26% | 12% | 15% | 18% | |
>80k | 6% | 15% | 25% | 22% | |
Education (%) | 0.29 | ||||
High school or less | 36% | 34% | 22% | 31% | |
Some college or more | 64% | 66% | 78% | 69% | |
Employment status (%) | 0.44 | ||||
Unemployed | 32% | 31% | 40% | 31% | |
Employed (full- or part-time) | 68% | 69% | 60% | 69% | |
Marital status (%) | 0.53 | ||||
Married | 41% | 44% | 45% | 52% | |
Unmarried | 59% | 56% | 55% | 48% | |
Have medical cannabis recommendation (%) | 0.18 | ||||
Yes | 40% | 32% | 24% | 23% | |
No | 60% | 68% | 76% | 77% | |
Co-use of marijuana and alcohol (%) | 0.09 | ||||
Concurrent user | 46% | 38% | 52% | 57% | |
Simultaneous co-use | 54% | 62% | 48% | 43% | |
Marijuana use (%) | 0.33 | ||||
Infrequent | 24% | 17% | 15% | 22% | |
Regular use | 40% | 30% | 45% | 37% | |
Daily/near daily use | 36% | 53% | 40% | 41% | |
Time to nearest marijuana outlet (minutes) (mean (SD)) | 20.1 (20.8) | 11.5 (11.9) | 9.0 (12.2) | 8.2 (17.0) | 0.003 |
Marijuana daily quantity (gram) (mean (SD)) | 0.3 (0.6) | 0.4 (0.6) | 0.2 (0.4) | 0.3 (0.4) | 0.35 |
Alcohol daily volume (mean (SD)) | 1.1 (1.4) | 1.2 (1.6) | 1.2 (1.4) | 0.9 (1.0) | 0.43 |