Table 2.

Classification of education levels.

The present project	The Danish Education Registers
Low	10 Primary and lower secondary education
Medium	20 Upper secondary education 30 Basic vocational education 35 Qualifying vocational education 40 Short-term tertiary education
High	50 Medium-term tertiary education 60 Bachelor’s degree 70 Master’s degree or equivalent tertiary education level 80 Doctoral degree or equivalent tertiary education level
Unstated	Unstated