Have used alcohol in lifetime

Have used alcohol in past year

Have used alcohol in past month

Have had heavy use of alcohol in past month

Heavy use of alcohol is defined as drinking five or more drinks (four or more for women) in a 24-hr. period at least once a week or on four or more days in the past month.

Have been dependent on alcohol in lifetime

Alcohol dependence is defined according to criteria in the DSM-IV. 

Have been dependent on alcohol in past year

Alcohol dependence is defined according to criteria in the DSM-IV.

Have abused alcohol in past year

Alcohol abuse is defined according to criteria in the DSM-IV.

Have been dependent on drugs in lifetime

Alcohol dependence is defined according to the criteria in the DSM-IV.

Have been dependent on drugs in past year

Drug dependence is defined according to the criteria in DSM-IV.

Have abused drugs in past year

Drug abuse is defined according to the criteria in the DSM-IV.

Have used marijuana in lifetime

Have used marijuana in past year

Have used marijuana in past month

Have used illicit drugs in lifetime

Illicit drug use includes use of marijuana/hashish, hallucinogens, cocaine, heroin/opiates and non-medical stimulants

Have used illicit drugs in past year

Illicit drug use includes use of marijuana/hashish, hallucinogens, cocaine, heroin/opiates and non-medical stimulants

Have used illicit drugs in past month

Illicit drug use includes use of marijuana/hashish, hallucinogens, cocaine, heroin/opiates and non-medical stimulants

Lifetime Illicit Drug use minus Marijuana

Illicit drug use minus marijuana, includes use of hallucinogens, cocaine and heroin/opiates

Past Month Use, Illicit Drugs minus Marijuana Illicit drug use minus marijuana, includes use of hallucinogens, cocaine and heroin/opiates

Have Used Illicit Drugs minus Marijuana in past year

Have been dependent on alcohol and/or drugs in life time

Alcohol and drug dependence defined according to the criteria in the DSM-IV.

Have abused alcohol and/or drugs in past year

Alcohol and drug abuse defined according to the criteria in the DSM-IV.

Have used cigarettes in lifetime

Have used cigarettes in past year

Have used cigarettes in past month

Have heavily used cigarettes in past month

Heavy cigarette use is defined as smoking one or more packs a day at the time of the survey

Needed alcohol or drug treatment in past year

Have sought treatment in lifetime (professional or non-professional)

Treatment could have been professional (i.e. treatment program, counseling) or non-professional program (i.e. self-help groups, classes).

Have sought treatment in past year (professional or non-professional)

Treatment could have been professional (i.e. treatment program, counseling) or non-professional (i.e. self-help groups, classes).

Have sought professional treatment in past year

Treatment could have included a program, professional counseling (individual or group), etc.

Have sought professional treatment in lifetime

Treatment could have included a program, professional counseling (individual or group), etc.