Baseline characteristics of individuals with affected first-degree relatives with myocardial infarction and the general population
| Women | Men | |||||
| ≥1 affected relatives | General population | P value | ≥1 affected relatives | General population | P value | |
| No. of subjects | 109 371 | 12 272 301 | 149 989 | 12 089 044 | ||
| Age (years), mean (SD) | 40.3 (21.0) | 39.6 (16.8) | <0.0001 | 38.9 (20.9) | 41.7 (15.6) | <0.0001 |
| MI (%) | 376 (0.3) | 33 762 (0.3) | <0.0001 | 1879 (1.3) | 101 507 (0.8) | <0.0001 |
| Place of residence (%) | <0.0001 | <0.0001 | ||||
| Urban | 76 254 (69.7) | 7 740 136 (63.1) | 99 079 (66.1) | 7 309 940 (60.5) | ||
| Suburban | 28 195 (25.8) | 3 624 603 (29.5) | 43 568 (29.1) | 3 848 868 (31.8) | ||
| Rural | 4733 (4.3) | 872 384 (7.11) | 7086 (4.7) | 895 750 (7.4) | ||
| Unknown | 189 (0.2) | 35 178 (0.3) | 256 (0.17) | 34 486 (0.3) | ||
| Income levels (%) | <0.0001 | <0.0001 | ||||
| Quintile 1 | 18 783 (17.2) | 2 062 900 (16.8) | 29 225 (19.5) | 2 310 684 (19.1) | ||
| Quintile 2 | 15 135 (13.8) | 1 838 185 (15.0) | 15 425 (10.3) | 1 506 475 (12.5) | ||
| Quintile 3 | 27 496 (25.1) | 3 658 895 (29.8) | 34 394 (22.9) | 3 207 226 (26.5) | ||
| Quintile 4 | 24 975 (22.8) | 2 411 506 (19.7) | 30 457 (20.3) | 2 241 214 (18.5) | ||
| Quintile 5 | 22 962 (21.0) | 2 298 595 (18.7) | 40 466 (27.0) | 2 821 626 (23.3) | ||
| Unknown | 20 (0.0) | 2220 (0.0) | 22 (0.0) | 1819 (0.0) | ||
| Occupation (%) | <0.0001 | <0.0001 | ||||
| Dependents of the insured individuals | 26 186 (23.9) | 4 535 168 (37.0) | 26 276 (17.5) | 3 746 793 (31.0) | ||
| Civil servants, teachers, military personnel and veterans | 5481 (5.0) | 343 851 (2.8) | 9641 (6.3) | 570 840 (4.7) | ||
| Non-manual workers and professionals | 44 824 (41.0) | 3 642 834 (29.7) | 61 947 (41.3) | 3 934 252 (32.5) | ||
| Manual workers | 20 894 (19.1) | 2 609 974 (21.3) | 30 635 (20.4) | 2 286 403 (18.9) | ||
| Other | 11 986 (11.0) | 1 140 474 (9.3) | 21 490 (14.3) | 1 550 756 (12.8) | ||
MI, myocardial infarction.