Self-reported workplace cannabis perceptions and availability of workplace cannabis use among all respondents before (time 1) and after (time 2) the legalisation of cannabis for non-medical purposes
| Time 1 (before legalisation) | Time 2 (after legalisation) | Unadj. P value* | Adj. P value*† | |||||
| % | 95% CI | % | 95% CI | |||||
| From | To | From | To | |||||
| Perceived risk of interference with productivity when using cannabis: | ||||||||
| Within 2 hours before work | 0.5999 | 0.0295 | ||||||
| No risk/slight risk | 23.5 | 21.7 | 25.4 | 22.1 | 20.5 | 23.6 | ||
| Moderate risk | 34.7 | 32.7 | 36.8 | 35.9 | 34.1 | 37.6 | ||
| Great risk | 37.6 | 35.5 | 39.7 | 37.9 | 36.2 | 39.7 | ||
| Don't know | 4.1 | 3.3 | 5.0 | 4.1 | 3.4 | 4.8 | ||
| While working, at lunch/other breaks | 0.0157 | 0.0060 | ||||||
| No risk/slight risk | 11.4 | 10.0 | 12.8 | 9.9 | 8.7 | 11.0 | ||
| Moderate risk | 19.2 | 17.5 | 20.9 | 22.5 | 20.9 | 24.0 | ||
| Great risk | 65.6 | 63.5 | 67.7 | 64.4 | 62.7 | 66.2 | ||
| Don't know | 3.8 | 2.9 | 4.6 | 3.3 | 2.6 | 3.9 | ||
| Perceived risk of harm of using cannabis: | ||||||||
| Within 2 hours before safety-sensitive work | 0.1571 | 0.1169 | ||||||
| No risk/slight risk | 11.6 | 10.2 | 13.0 | 11.3 | 10.1 | 12.6 | ||
| Moderate risk | 24.2 | 22.3 | 26.0 | 26.3 | 24.7 | 27.9 | ||
| Great risk | 59.4 | 57.3 | 61.6 | 58.5 | 56.7 | 60.4 | ||
| Don't know | 4.8 | 3.8 | 5.7 | 3.9 | 3.2 | 4.5 | ||
| Perceived ease of: | ||||||||
| Using cannabis during lunch/other breaks | 0.0024 | 0.0081 | ||||||
| Difficult | 41.6 | 39.4 | 43.9 | 42.3 | 40.5 | 44.1 | ||
| Neither easy/difficult | 9.1 | 7.8 | 10.5 | 8.1 | 7.1 | 9.0 | ||
| Easy | 43.6 | 41.2 | 45.9 | 46.2 | 44.4 | 48.1 | ||
| Don't know | 5.7 | 4.4 | 6.9 | 3.4 | 2.7 | 4.0 | ||
| Using cannabis while working (excluding breaks) | 0.0081 | 0.0020 | ||||||
| Difficult | 67.0 | 64.5 | 69.5 | 71.4 | 69.8 | 73.1 | ||
| Neither easy/difficult | 6.4 | 5.3 | 7.6 | 6.1 | 5.2 | 7.0 | ||
| Easy | 20.6 | 18.1 | 23.2 | 19.0 | 17.6 | 20.4 | ||
| Don't know | 5.9 | 4.0 | 7.8 | 3.5 | 2.8 | 4.1 | ||
| Getting/buying/selling cannabis at work | 0.0016 | 0.2045 | ||||||
| Difficult | 55.2 | 52.8 | 57.6 | 59.7 | 57.9 | 61.5 | ||
| Neither easy/difficult | 10.2 | 8.8 | 11.7 | 9.0 | 8.0 | 10.0 | ||
| Easy | 21.3 | 19.3 | 23.3 | 20.8 | 19.3 | 22.3 | ||
| Don't know | 13.3 | 11.8 | 14.8 | 10.5 | 9.4 | 11.6 | ||
*P values correspond to the results of an F test testing the hypothesis of equal marginal means for the main effect of time (comparing time 1 with time 2 weighted for non-response).
†Adjusted for survey mode, age, sex, province, education, smoking, alcohol, general health status, hazardous work, workplace size, work hours, tenure, workshift schedule, job permanence, industry, and cannabis use status.
Adj, adjusted; Unadj, unadjusted.