<p>APPENDIX 1: DISTRIBUTION OF KEY COVARIATES ACCORDING TO COUNTRY</p><p>Czech Belgiu Franc Greec Swede Switzerlan Austria Republi Denmark Germany Italy Netherland Poland Spain Total m e e n d c</p><p>N 232 854 784 1288 1024 799 549 671 881 669 531 1044 659 9985</p><p>Mean age at 68.4 65.8 64.5 64.8 66.1 65.0 64.3 66.8 64.6 62.4 65.9 68.0 64.6 65.4 interview (SD) (9.4) (10.2) (9.0) (9.8) (9.8) (8.9) (9.2) (9.2) (8.7) (8.9) (10.0) (9.2) (9.3) (9.5)</p><p>% Male 38.8 50.7 40.2 44.2 44.5 43.8 48.5 58.0 43.0 43.3 55.0 43.4 47.0 46.0</p><p>Mean age 16.3 17.7 18.0 19.5 17.4 18.9 15.8 14.5 17.8 16.8 12.6 20.1 19.2 17.7 finishing education (SD) (4.2) (4.0) (2.8) (5.1) (4.6) (4.5) (5.9) (6.0) (4.6) (3.6) (6.0) (8.6) (3.9) (5.6) 138 Childhood SES 19 101 46 181 67 28 141 32 23 184 78 1064 (%) a (13.5 26 (3.9) (8.2) (11.8) (5.9) (14.1) (8.4) (5.1) (16.0) (4.8) (4.3) (17.6) (11.8) (10.7) 1 )</p><p>7 52 73 55 68 49 5 17 61 19 22 58 42 528 2 (3.0) (6.1) (9.3) (4.3) (6.6) (6.1) (0.9) (2.5) (6.9) (2.8) (4.1) (5.6) (6.4) (5.3)</p><p>631 427 167 403 593 791 610 399 589 551 316 706 480 6663 3 (61.6 (77.8 (72.0) (47.2) (75.6) (61.4) (76.4) (59.5) (66.9) (82.4) (59.5) (67.6) (72.8) (66.7) ) ) 187 89 39 298 72 261 73 229 90 67 170 96 59 1730 4 (18.3 (16.2 (16.8) (34.9) (9.2) (20.3) (9.1) (34.1) (10.2) (10.0) (32.0) (9.2) (9.0) (17.3) ) ) 30.8 Mean follow- 30.9 30.3 27.9 30.1 28.4 29.0 30.3 30.5 26.3 31.0 32.5 30.5 30.0 (11.1 up, yrs (SD) (12.0) (11.3) (9.9) (10.5) (10.5) (9.7) (10.8) (10.0) (10.5) (11.2) (11.0) (10.2) (10.7) ) a Category 1= ‘legislators, senior officials and managers’ and ‘professionals’ (ISCO-88 major groups 1 and 2); category 2=’technicians and associate professionals’ (ISCO-88 major group 3); category 3= ‘clerks’, ‘service, shop or market sales worker’, ‘skilled agricultural or fishery worker’, ‘craft or related trades workers’, ‘plant/machine operator or assembler’ (ISCO-88 major groups 4, 5, 6, 7 and 8); and category 4=’elementary occupation’ (ISCO-88 major group 9). </p>