One approach to determining the validity of self-reported drug use measures is to examine the extent of logically inconsistent responses over time. Because lifetime use logically should never decline, the rate of subsequent recanting of earlier reported lifetime use provides relevant evidence on validity. In this chapter, recanting rates are examined in nationally representative samples of high...

Objective The purpose of this study was to evaluate the perinatal outcomes in pregnant women who use illicit drugs. Methods A retrospective observational study of patients who, at the time of delivery, were sent to or who spontaneously sought a public maternity hospital in the eastern area of São Paulo city. We compared the perinatal outcomes of two distinct groups of pregnant women - illicit d...

Background Driving performance is easily disrupted as a direct consequence of the use of alcohol, licit and illicit drugs. Epidemiological research suggests that a blood alcohol level of 80mg/100ml (the UK legal limit) is associated with an approximate doubling of the risk of a driver becoming involved in a collision. This legal BAC limit is used as a reference point to indicate the impaired an...

Therapeutic opioid use and abuse coupled with the nonmedical use of other psychotherapeutic drugs has shown an explosive growth in recent years and has been a topic of great concern and controversy. Americans, constituting only 4.6% of the world's population, have been consuming 80% of the global opioid supply, and 99% of the global hydrocodone supply, as well as two-thirds of the world's illeg...