Table 1.

Descriptive variables of covariates by country

	N	Male	Female	Age		Years of schooling
				Mean	SD	Mean	SD
Denmark	992	447	545	64	9.5	13	3.5
Germany	1,407	650	757	64	9.1	13	3.2
Netherlands	707	342	365	62	9.7	12	3.8
Belgium	1,037	483	554	65	9.7	12	3.7
France	936	404	532	65	10.2	11	5.0
Italy	844	388	456	64	8.9	8	4.4
Spain	723	323	400	64	10.3	8	4.8
Greece	655	328	327	62	9.8	10	4.4
Poland	552	244	308	62	9.6	9	3.0
Czech Republic	896	367	528	64	9.6	11	3.1
Total	9,409	4,282	5,127	64	9.7	11	4.3