Washington DC Metropolitan Area Drug Study Household and Non-Household Populations (DC-MADSH-1991)

Parent Series Details:

The non-series is dedicated to providing access to studies which are not otherwise a part of an explicit series.

Study Details:

The DC Metropolitan Area Drug Study (DC*MADS) was conducted in 1991, and included special analyses of homeless and transient populations and of women delivering live births in the DC hospitals. DC*MADS was undertaken to assess the full extent of the drug problem in one metropolitan area. The study was comprised of 16 separate studies that focused on different sub-groups, many of which are typically not included or are under-represented in household surveys.

The DC*MADS: Household and Non-household Populations examines the prevalence of tobacco, alcohol, and drug use among members of household and non-household populations aged 12 and older in the District of Columbia Metropolitan Statistical Area (DC MSA). The study also examines the characteristics of three drug-abusing sub-groups: crack-cocaine, heroin, and needle users. The household sample was drawn from the 1991 National Household Survey on Drug Abuse (NHSDA). The non-household sample was drawn from the DC*MADS Institutionalized and Homeless and Transient Population Studies. Data include demographics, needle use, needle-sharing, and use of tobacco, alcohol, cocaine, crack, inhalants, marijuana, hallucinogens, heroin, sedatives, stimulants, psychotherapeutics (non-medical use), tranquilizers, and analgesics.

Study Scope

Time period: 
Collection date: 
Geographic coverage : 
District of Columbia
Unit of observation: 
Data types: 
survey data
For the Household Study: the civilian, noninstitutionalized population of the coterminous United States (Alaska and Hawaii excluded) aged 12 and older. For the Institutionalized Study: persons in institutional (e.g., correctional facilities, mental or psy
Users should note that the National Institute on Drug Abuse does not make a public use file available for the DC*MADS Institutionalized Population Study.
Subject Terms: 
  • alcohol
  • cocaine
  • crack cocaine
  • demographic characteristics
  • drug abuse
  • drug use
  • hallucinogens
  • heroin
  • homeless persons
  • inhalants
  • marijuana
  • sedatives
  • smoking
  • stimulants
  • tranquilizers

Study Methodology

The household and nonhousehold data were drawn from three sources: (1) the DC MSA oversample of NATIONAL HOUSEHOLD SURVEY OF DRUG ABUSE, 1991 (NHSDA), (2) the DC*MADS 1991 Institutionalized Population Study, and (3) WASHINGTON, DC, METROPOLITAN AREA DRUG STUDY (DC*MADS), 1991: HOMELESS AND TRANSIENT POPULATION. The NHSDA oversample consisted of interviews with 2,547 residents from a sample of 5,399 households and selected group quarters (e.g., college dormitories, homeless shelters). The Institutionalized Study consisted of 1,203 interviews with residents of 42 institutions stratified into four groups: 888 interviews from 20 correctional institutions, 207 interviews from 6 psychiatric institutions, 55 interviews from 7 noncorrectional institutions for juveniles, and 73 interviews from 9 group homes. The Homeless and Transient Population Study consisted of 908 interviews from four overlapping sampling frames: 477 interviews with residents in 93 shelters, 224 interviews with patrons of 31 soup kitchens and food banks, 143 interviews with "literally homeless" people from 18 major cluster encampments, and 64 interviews with literally homeless people from an area probability sample of 432 census blocks in the MSA. Overlap between the samples may have occurred. The overlap was minimized by eliminating institutions from the DC*MADS surveys that would increase overlap. For example, students living in dormitories were included in the NHSDA but not the DC*MADS Institutionalized Study.
Response rates: 
  • For the household, institutional, and homeless studies, the household/institutional response rates were 93.5 percent, 87.5 percent, and 82.6 percent, respectively. The individual interview response rates were 82.1 percent, 89.4 percent, and 86.1 percent. The overall response rates were 76.8 percent, 78.2 percent, and 71 percent.
  • 2008-07-16: New files were added. These files included one or more of the following: Stata setup, SAS transport (CPORT), SPSS system, Stata system, SAS supplemental syntax, and Stata supplemental syntax files, and tab-delimited ASCII data file. The variable CASEID was added to the dataset.
  • 1998-11-19: The data file was reprocessed to eliminate duplicate records. Also, the SAS and SPSS data definition statements and codebook were edited due to a reversal in value labels for RACE. The correct labels are 1 = "White" and 2 = "Black".
Extent of processing: 
  • Performed consistency checks.
  • Created variable labels and/or value labels.
  • Standardized missing values.
  • Created online analysis version with question text.
  • Checked for undocumented or out-of-range codes.