e-Table. Educational background of the younger (16- to 20-year-old) and older (21- to 25-year-old) study participants (men n = 10 407; women n = 2428).

Age group	High school certificate to enable the student to go to university	Intermediate school certificate	Secondary general school certificate	Total
16- to 20-year-olds
(47.9% of study participants)	35.5%	46.4%	29.8%	100%
21- to 25-year-olds
(52.1% of study participants)	47.5%	53.6%	15.7%	100%
Total cohort	41.8%	35.8%	22.5%	100%