Drug use questionnaire (English translation)

1. Sex	Male		Female
2. Age (years)	18-21	22-25	26-29	>29
3. Have you ever used (either for recreational or medical use) one or more of the following drugs? amphetamines, buprenorphine, cannabinoids, cocaine, ketamine, methadone, methoxianphetamines, opiates			Yes	No
4. Have you ever used this type of drug? For which reason?
Amphetamines	medical		recreational
Buprenorphine	medical		recreational
Cannabinoids	medical		recreational
Cocaine	medical		recreational
Ketamine	medical		recreational
Methadone	medical		recreational
Methoxianphetamines	medical		recreational
Oppiates	medical		recreational
5. Have you used this type of drug during the last 12 months?
Amphetamines	Yes		No
Buprenorphine	Yes		No
Cannabinoids	Yes		No
Cocaine	Yes		No
Ketamine	Yes		No
Methadone	Yes		No
Methoxianphetamines	Yes		No
Oppiates	Yes		No
6. Which age (years) you first used this type of drug?
Amphetamines	Never	<15	15-20	>20
Buprenorphine	Never	<15	15-20	>20
Cannabinoids	Never	<15	15-20	>20
Cocaine	Never	<15	15-20	>20
Ketamine	Never	<15	15-20	>20
Methadone	Never	<15	15-20	>20
Methoxianphetamines	Never	<15	15-20	>20
Oppiates	Never	<15	15-20	>20