AIMS: To examine whether neighborhood racial characteristics are associated with the under reporting of life time cocaine/crack use. DESIGN: A household survey of high-risk communities with above-average admissions to state-supported drug and alcohol treatment programs. SETTING: Chicago, Illinois, USA. PARTICIPANTS: A total of 303 adults. MEASURES: Self-reported use of cocaine/crack during a respondent's life time, hair test assays for cocaine use and level of neighborhood diversity measured using the Simpson Index. FINDINGS: Respondents from more segregated neighborhoods were more likely than those from diverse neighborhoods to under report life time cocaine/crack use. CONCLUSIONS: Neighborhood racial characteristics should be considered as an important factor in household surveys on illicit substance use.
AIMS: To examine whether neighborhood racial characteristics are associated with the under reporting of life time cocaine/crack use. DESIGN: A household survey of high-risk communities with above-average admissions to state-supported drug and alcohol treatment programs. SETTING: Chicago, Illinois, USA. PARTICIPANTS: A total of 303 adults. MEASURES: Self-reported use of cocaine/crack during a respondent's life time, hair test assays for cocaine use and level of neighborhood diversity measured using the Simpson Index. FINDINGS: Respondents from more segregated neighborhoods were more likely than those from diverse neighborhoods to under report life time cocaine/crack use. CONCLUSIONS: Neighborhood racial characteristics should be considered as an important factor in household surveys on illicit substance use.
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