title: Alcohol- and drug-involved driving in the United States: methodology for the 2007 National Roadside Survey.
abstract: This article describes the methodology used in the 2007 U.S. National Roadside Survey to estimate the prevalence of alcohol- and drug-impaired driving and alcohol- and drug-involved driving. This study involved randomly stopping drivers at 300 locations across the 48 continental U.S. states at sites selected through a stratified random sampling procedure. Data were collected during a 2-hr Friday daytime session at 60 locations and during 2-hr nighttime weekend periods at 240 locations. Both self-report and biological measures were taken. Biological measures included breath alcohol measurements from 9,413 respondents, oral fluid samples from 7,719 respondents, and blood samples from 3,276 respondents.
authors: Impaired Driving Center, Pacific Institute for Research and Evaluation, Calverton, MD 20705, USA.
authors: John H
authors: JH
authors: Lacey
authors: Tara
authors: T
authors: Kelley-Baker
authors: Robert B
authors: RB
authors: Voas
authors: Eduardo
authors: E
authors: Romano
authors: C Debra
authors: CD
authors: Furr-Holden
authors: Pedro
authors: P
authors: Torres
authors: Amy
authors: A
authors: Berning
mesh_terms: D000435:Alcoholic Intoxication / Q000097:blood / Q000453:epidemiology* / Q000378:metabolism; D001334:Automobile Driving / Q000706:statistics & numerical data*; D001944:Breath Tests; D003625:Data Collection; D006801:Humans; D013287:Illicit Drugs / Q000097:blood*; D035846:Law Enforcement; D015813:Substance Abuse Detection; D014481:United States / Q000453:epidemiology
chemical_list: D013287:Illicit Drugs