Table 3 Overview of socio-demographic characteristics for participants with both a blood sample and questionnaire, by sample (n (%))
| Â | NS & oversampling of migrants | LVC sample | CN sample |
|---|---|---|---|
5745 (14.4%) | 1354 (19.8%) | 1815 (23.4%) | |
Sex | 5745 (100.0%) | 1354 (100.0%) | 1815 (100.0%) |
 Male | 2629 (45.8%) | 594 (43.9%) | 814 (44.8%) |
 Female | 3116 (54.2%) | 760 (56.1%) | 1001 (55.2%) |
Ethnicity | 5744 (99.9%) | 1354(100.0%) | 1804 (99.4%) |
 Indigenous Dutch | 4490 (78.1%) | 1299 (96.0%) | 146 (8.1%) |
 Morocco and Turkey | 142 (2.5%) | 3 (0.2%) | 1 (0.1%) |
 Suriname, Aruba and former Dutch Antilles | 285 (5.0%) | 4 (0.3%) | 1301 (72.1%) |
 Other non-Western countries | 445 (7.7%) | 15 (1.1%) | 280 (15.5%)a |
 Other Western countries | 382 (6.7%) | 33 (2.4%) | 76 (4.2%) |
Religion | 5330 (92.8%) | 1200 (88.6%) | 1784 (98.3%) |
 Protestant | 841 (15.8%) | 843 (70.3%) | 44 (2.5%) |
  - Orthodox Reformed | 79 (9.4%) | 299 (35.5%) | NA |
 Roman Catholic | 1279 (24.0%) | 29 (2.4%) | 892 (50.0%) |
 Other religion | 598 (11.2%) | 44 (3.7%) | 625 (35.0%) |
 No religion | 2612 (49.0%) | 284 (23.7%) | 223 (12.5%) |
Educational levelb | 5407 (94.1%) | 1280 (94.5%) | 1574 (86.7%) |
 High educational level | 1465 (27.1%) | 443 (34.6%) | 319 (20.3%) |
 Middle educational level | 1855 (34.3%) | 540 (42.2%) | 401 (25.5%) |
 Low educational level | 2087 (38.6%) | 297 (23.2%) | 854 (54.2%) |
Urbanisation degreeb | 5745 (100.0%) | 1354 (100.0%) | NA |
 1 (Highly urbanised) | 1246 (21.7%) | – | NA |
 2 (Urbanised) | 1873 (32.6%) | – | NA |
 3 (Moderate urbanised) | 1090 (19.0%) | 159 (11.7%) | NA |
 4 (Little urbanised) | 1041 (18.1%) | 753 (55.6%) | NA |
 5 (Countryside) | 495 (8.6%) | 442 (32.6%) | NA |