These methods are classified as long-term reversible methods and include intrauterine devices, injectable hormonal methods and hormonal implants or skin patches. The first stylized evidence, based on data from the Perinatal Information System of Uruguay's Ministry of Public Health, shows the clear prevalence of unplanned pregnancies among adolescents and youths from lower-income, less-educated sectors (Diaz Rosello, Fernandez and Filgueira, 2014). But the higher the age bracket, the more likely more marked patterns of lack of planning become among less-educated women (see figure IV.7).