California Perinatal Substance Exposure Study, 1992
Investigators: William A. Vega

This epidemiologic cross-sectional survey was conducted in order to obtain a 1992 estimate of prevalence of prenatal drug exposure by specific drug type for both the State of California as a whole and for the major regions within the state. The study was conducted under an interagency agreement between the California Department of Alcohol and Drug Program's (ADP) Office of Perinatal Substance Abuse (OPSA) and the Department of Social and Administrative Health Science, School of Public Health, University of California at Berkeley. Urine specimens and demographic information were collected anonymously from 29,494 pregnant women admitted for delivery in 202 maternity hospitals throughout the state between March and October, 1992. This study, which represents the largest survey of perinatal substance exposure reported to date, assessed 46 variables across 29,494 cases.