Table 4.

Change in consumption between baseline and 12 weeks.

Characteristics	Baseline (N = 20a)	12 weeks (N = 20a)
Number of joints per day	6.70 (3.42)	3 (3)
Lost to follow-up		11
Total amount spent on cannabis per day (€)	10.8 (5.8)	4.2 (4.8)
Lost to follow-up		11
Daily concentration of inhaled CBD (mg/day)	56 (48)	216 (125)
Lost to follow-up		11
Carbon monoxide level
0 to 4 ppm	4 (21%)	2 (25%)
5 to 9 ppm	1 (5,3%)	2 (25%)
10 to 14 ppm	5 (26%)	3 (38%)
15 to 24 ppm	5 (26%)	0 (0%)
> 24 ppm	4 (21%)	1 (12%)
Lost to follow-up		12
Number of cigarettes per day	7 (6)	2.67 (2.50)
Lost to follow-up		11

^aMean (SD); n (%).