Table 1.

Mean age, weight, lifetime drug use (total number of times used) and drug use in years of the 61 subjects enrolled in the study

	Mean	SD	Min	Max	Drug use (years)
Age (years)	23.05	3.04	18.3	32.4
Weight (kg)	69.34	9.98	51	91
Cannabis	1027.43	1329.79	40	6 000	6.96
Cocaine	56.54	85.58	4	450	3.31
Alcohol	1063.00	2714.01	50	19 200	8.54
Ecstasy	26.81	30.74	0	125	4.00
Amphetamines	44.71	167.79	1	1 000	2.72
Mushrooms	7.84	14.33	0	75	2.88
LSD	7.88	8.17	0	20	1.64
Other	17.93	37.45	0	150	1.64

Max, maximum; Min, minimum.