Frequency of Data Collection

Geographic Coverage

Prevalence Estimates

Purpose

Throughout the calendar year

National

Lifetime; past 12 months; past 30 days

To track use of illegal drugs and other addictive substances and to collect related information from among the general population.

Throughout the calendar year with longitudinal follow-up of 12th graders once every 2 years

National

Lifetime, past 12 months; past 30 days

To track use of illegal drugs and other addictive substances among students registered for school.

Quarterly: data are collected for a two-week period, four times a year

23 cities

None

To track the illegal drug use among arrests.

Throughout the year

National

None

To track emergency department cases and medical examiner deaths caused by the use of illegal drugs or the abuse of prescription and over-the-counter drugs.



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