Table 1.

Demographic features of our sample

	(A) Original cohort	(C) Individuals who did not finish high school	(D) Grades from basic high school	(E) Never started upper high school	(F) Started but not finished upper high school	(G) Finished upper high school
N	1 997 910	56 619	1 941 291	227 703	111 671	1 601 917
Deprived area (%)	10.1%	16.9%	9.9%	15.7%	12.1%	8.9%
Urban area (%)	64.2%	66.3%	64.1%	64.4%	63.6%	64.1%
Low parental education (%)	12.4%	17.5%	12.3%	20.7%	8.6%	11.4%
Not stable home	31.4%	51.0%	30.8%	49.4%	46.2%	27.1%