Table 2.

Frequency of cannabis use before and after the introduction of the lockdown measures.

After introduction of the measures
		(Almost) daily	A few times a week	Once a week	A few times a month	Once a month/few times a year	Stopped (temporarily) during lockdown	Number of respondents before measures (n)
Before introduction of the measures	(Almost) daily	95.7	2.1	0.3	0.2	0.0	1.8	1,059
	A few times a week	52.0	40.3	2.4	2.0	0.0	3.2	248
	Once a week	23.2	33.7	28.4	7.4	3.2	4.2	95
	A few times a month	18.9	16.2	17.6	29.7	13.5	4.1	74
	Once a month/few times a year	16.5	15.3	10.6	7.1	40.0	10.6	85

Numbers are shown as percentages. Data for respondents who indicated to use once a month (n = 38) and a few times a year but less than monthly (n = 47) were pooled because of the low numbers. This table shows how the frequency in cannabis use has shifted before and after the introduction of the coronavirus measures per user group. The gray diagonal indicates the percentage of users reporting no change in frequency of use. Boxes to the right of the diagonal indicate a decrease in frequency of use after measures were introduced. Boxes to the left of the diagonal indicate an increase in frequency of use after measures were introduced. The answer category “(temporarily) stopped” was later added to the questionnaire. For the first 171 respondents this answer option was not available. It was checked whether these respondents indicated in the open fields to have (temporarily) stopped using.