Silvia Martins, MD, PhD, focuses her research on the epidemiology of substance use, abuse and dependence, as well as the environmental, psychiatric and individual factors associated with substance use disorders in the U.S. and general population. In particular, Dr Martins conducts studies on nonmedical prescription drug use, abuse and dependence among adolescents, young adults, and minorities and has an interest in childhood risk factors for problem and pathological gambling. As a faculty member of the Psych-Neuro Epidemiology Cluster at Columbia University, she works closely with researchers from such disciplines as social epidemiology, mental health, psychiatry, psychology, addiction psychiatry, substance abuse health economics, statistics and survey methodology, and collaborates with researchers from other leading institutions including Michigan State University, University of Sao Paulo, Brazil, and American University of Beirut, Lebanon. Her research portfolio has included NIDA-NIH funded studies to investigate trends in nonmedical prescription opioid use and opioid use disorder in U.S. populations well as their association with psychiatric disorders. As the principal investigator on a NICHD-NIH funded study, Dr. Martins is investigating childhood predictors of young adult gambling and gambling problems in African-Americans in Baltimore.