More than 500 EDs that were part of a scientifically-
selected sample of general hospitals in the country provided data for
DAWN. The DAWN sample is constructed to produce estimates of substance
abuse visits to emergency departments across the nation and to 21
oversampled metropolitan areas. The sample design of DAWN does not
permit state-level estimates. Hospitals in the frame were stratified
according to size, with hospitals reporting 80,000 or more annual
emergency department visits assigned to a single stratum and selected
with certainty. Additional strata were defined according to whether
the hospital had an organized outpatient department or a
chemical/alcohol inpatient unit. The 21 oversampled MSAs include:
Atlanta, GA, Baltimore, MD, Boston, MA, Buffalo, NY, Chicago, IL,
Dallas, TX, Denver, CO, Detroit, MI, Los Angeles, CA, Miami, FL,
Minneapolis, MN, New Orleans, LA, New York, NY, Newark, NJ,
Philadelphia, PA, Phoenix, AZ, San Diego, CA, San Francisco, CA,
Seattle, WA, St. Louis, MO, and Washington, DC.
Patients treated during 1994 in the emergency department
of nonfederal, short-stay general hospitals that have a 24-hour
emergency department. Eligible respondents were those patients who met
the following criteria: (1) they were aged 6 years or older, (2) their
presenting problem(s) was/were induced by or related to drug use,
regardless of when the drug ingestion occurred, (3) the case involved
the nonmedical use of a legal drug or any use of an illegal drug, (4)
the patient's reason for taking the substance(s) included one of the
following: (a) dependence, (b) suicide attempt or gesture, or (c)
psychic effects.
administrative records data
clinical data
survey data
hospital medical records