Table 2 Distribution of predictor variables according to use of cannabis at T4
Never used cannabis | Has used cannabis before, but not last year | Has used cannabis last year | Difference test Test statisticsa/p-value | ||||||
|---|---|---|---|---|---|---|---|---|---|
Gender | |||||||||
Men | N (%) | 682 | 60.7 | 247 | 22.0 | 194 | 17.3 | ||
Women | N (%) | 1024 | 72.2 | 271 | 19.1 | 123 | 8.7 | 52.03 | < 0.001 |
Age | Mean (SD) | 28.56 | 2.01 | 28.46 | 1.88 | 28.07 | 1.91 | 8.34 | < 0.001 |
Education (in years) | Mean (SD) | 14.92 | 2.14 | 15.03 | 2.20 | 15.05 | 2.26 | 0.75 | 0.471 |
Body mass index | Mean (SD) | 24.49 | 4.06 | 24.33 | 4.18 | 23.90 | 3.70 | 2.83 | 0.059 |
Asthma at T1 | |||||||||
No asthma | N (%) | 1530 | 67.0 | 462 | 20.2 | 292 | 12.8 | ||
Asthma | N (%) | 100 | 69.0 | 33 | 22.8 | 12 | 8.3 | 2.72 | 0.256 |
Allergies at T1 | |||||||||
No allergies | N (%) | 1290 | 67.4 | 394 | 20.6 | 231 | 12.1 | ||
Allergies | N (%) | 340 | 66.1 | 101 | 19.6 | 73 | 14.2 | 1.74 | 0.419 |
Smoking at T4 | |||||||||
Has never smoked | N (%) | 1132 | 81.9 | 175 | 12.7 | 75 | 5.4 | ||
Smoked daily before, but not now | N (%) | 208 | 56.4 | 121 | 32.8 | 40 | 10.8 | ||
Smokes sometimes, but not daily | N (%) | 135 | 48.4 | 72 | 25.8 | 72 | 25.8 | ||
Smokes daily | N (%) | 226 | 45.0 | 147 | 29.3 | 129 | 25.7 | 360.28 | < 0.001 |