By contrast, three out of four apprentices at the upper secondary level were in technical and industrial fields.) Some evidence shows that employment rates are higher for graduate apprentices than for students with equivalent school-based qualifications (Abriac, Rathelot and Sanchez, 2009). More than 160 000 adults aged 16 to 65 were surveyed in 24 countries and regions. Since ISCED 4, 5B and 5A each include both general and vocational programmes, short-cycle post-secondary vocational programmes were approximated by modifying ISCED 4 and 5B by reference to the field of study. The Survey provides information on the areas of studies for current education and for the highest qualification.