[Family-based drug use prevention: the "Familias que Funcionan" ["Families that Work"] program].

Family-based drug use prevention: The <<Familias que Funcionan [Families that work]>> program.. <>[Families that work] is a family-based drug-use prevention program resulting from the adaptation to the Spanish context of the prestigious North-American <<Strengthening Families Program 10-14>>. The program was applied at four secondary schools (N = 380 pupils) in Asturias (northern Spain). This article presents the results of the assessment of this application after a two-year follow-up, regarding its effectiveness in the reduction of drug use among adolescents and its effects on certain family risk factors. Consistent attendance in the <> program proved effective for reducing both rates (t= -2.73, p<.05 and t= -4.58, p<.005, for the 1- and 2-year follow-ups, respectively) of increase in adolescent drug use and some family risk factors.