Recoding was not carried out. The original data give information on the grade completed for each level of education, but do not specify whether the person achieved the final diploma or not (which depends on the length of the degree course). Whereas it is possible to identify with almost certainty the length for primary and secondary education, the duration of a complete course of tertiary education is variable, and hence it is not possible to distinguish persons with some years of tertiary education, among those who completed a degree and those who did not. Based on the typical length of tertiary education (most of the university degrees are 5 years long, whereas technical formation usually lasts 3 years), and on the modes of year completed for persons who are no longer in education (which happen to be at exactly 3 and 5 years), the following mapping has been dreafted to serve as a suggestion. The problematic categories are pointed out. Please note that even for the categories where the mapping is shown as unique, there have been assumptions which may diverge from reality. If LIS users want to pursue a recode they may do so on their own responsability. PEDUC LIS recode 11 No education, cannot read and write 1 12 No education, can read and write 1 21 Pre-primary education, cannot read and write 1 22 Pre-primary education, can read and write 1 101 Primary education, started first year, cannot read and write 1 102 Primary education, started first year, can read and write 1 111 Primary education, first year completed, cannot read and write 1 112 Primary education, first year completed, can read and write 1 121 Primary education, second year completed, cannot read and write 1 122 Primary education, second year completed, can read and write 1 131 Primary education, third year completed, cannot read and write 1 132 Primary education, third year completed, can read and write 1 141 Primary education, fourth year completed, cannot read and write 1 142 Primary education, fourth year completed, can read and write 1 150 Completed primary education 1 200 Secondary education, started first year 1 210 Secondary education, first year completed 1 220 Secondary education, second year completed 1 230 Secondary education, third year completed 1 240 Secondary education, fourth year completed (basic cycle) 1 250 Secondary education, fifth year completed 1 260 Completed upper secondary education 2 300 Tertiary education, started first year 2 310 Tertiary education, first year completed 2 320 Tertiary education, second year completed 2 330 Tertiary education, third year completed 2/3 340 Tertiary education, fourth year completed 2/3 350 Tertiary education, fifth year completed 3 360 Tertiary education, sixth year completed 3 370 Tertiary education, seventh year completed 3 380 Tertiary education, eight year completed 3 390 Tertiary education, nine or more years completed 3