Fig. 1.

Coping with stressful situations as a reason for the substance intake. Mean scores in the item “What was the reason for the intake? To cope with stressful situations.” Likert scale average (1- I totally disagree to 5 – I totally agree). Stimulating prescription drugs: use of prescription drugs containing amphetamines, methylphenidate, modafinil and/or anti-dementia drugs; Stimulating illicit drugs: use of cocaine, amphetamines and/ or meth-amphetamines; Mood modulating prescription drugs: use of anti-depressants, beta blocker and/ or benzodiazepines); Cannabis: use of cannabis; Any drug: use of any of the listed substances