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. 2017 Jan 15;46(2):390–391. doi: 10.1093/ije/dyw321

Table 3.

IPUMS integrates census variables to capture common concepts while preserving detail. Educational attainment harmonized codes for a selection of IPUMS-I samples (‘x’ indicates that the code is present in the respective sample)

Country (ISO code) BR CN EG FR DE IN IR MX PK PH ZA ES SD TH US VN

Code Variable label Sample year 00 90 06 06 87 04 06 06 98 00 07 01 08 00 05 09
General (1 digit) codes and labels
0 NIU (not in universe) x x x x x · x x x x x x x x x x
1 Less than primary completed x x x x · x x x x x x x x x x x
2 Primary completed x x x x x x x x x x x x x x x x
3 Secondary completed x x x x x x x x x x x x x x x x
4 University completed x x x x x x x x x x x x x x x x
9 Unknown/missing · · x · x x x x x x x · x x · ·
Detailed (3 digit) codes and labels
0 NIU (not in universe) x x x x x · x x x x x x x x x x
100 Less than primary completed · · x · · · · · · · · · · · · ·
110  No schooling x x · x · x x x x x x x x x x x
120  Some primary x x · x · x x x x x x · x x x x
130  Primary (4 years) x · · · · · · · · · · · · · · ·
Primary completed, less than secondary
Primary completed
211  Primary (5 years) · · · · · x x · · · · x · · · x
212  Primary (6 years) x x x x x · · x x x x · x x x ·
Lower secondary completed
221  General and unspecified track x x x x x x x x x · x x x x x x
222  Technical track · · · x · · · x · · · · · · · ·
Secondary completed
General or unspecified track
311  General track completed x x x x x x x x x x x x x x x x
312  Some college/university x x · · · x x x · x · · · x x x
320 Technical track · · · · · · · · · · · · · · · ·
321  Secondary technical degree · x · · x · x x · · · x · x · x
322  Post-secondary technical education · x x · x x · x x x · x x x · ·
400 University completed x x x x x x x x x x x x x x x x
999 Unknown/missing · · x · x x x x x x x · x x · ·