1 = male
2 = female
3 = none of the above

Gender binary 1 -1
1 = male
2 = female

Children (yes/no)
1 = yes
2 = no

1 = primary education
2 = upper secondary education, vocational education or short cycle higher education
3 = vocational bachelor, bachelor or master
4 = PhD

0 = Datapoints included in analyses
1 = Datapoints excluded for medical reasons