From 2002 through 2008, among adolescents aged 12 to 17, girls' rates of lifetime ecstasy use were higher than boys'. This pattern contrasts with that for marijuana, which boys used in higher percentages than girls during this period. The higher prevalence of ecstasy use among girls persisted when the researchers separated out the effects of household income, ethnicity, and population density of youths' areas of residence. The researchers analyzed annual data from the National Survey on Drug Use and Health. The number of adolescents who participated varied by year and ranged from 17,429 to 19,430.
Wu, P., et al. Ecstasy use among U.S. adolescents from 1999 to 2008. Drug and Alcohol Dependence 112(1-2):33-38, 2010. (Abstract)