| N (%) | 161 901 (36.0) | 287 837 (64.0) |
| Clinic size, mean (SD) | 4906 (1902.2) | 4361 (1606.0) |
| Mean age, years (SD) | 41.52 (23.49) | 41.76 (23.54) |
| Sex | | |
| Male | 82 671 (51.1) | 145 101 (50.4) |
| Female | 79 230 (48.9) | 142 736 (49.6) |
| Education level | | |
| ≤10 years | 46 178 (28.5) | 80 727 (28.1) |
| >10 and ≤15 years | 61 117 (37.8) | 109 013 (37.9) |
| >15 years | 25 825 (16.0) | 46 523 (16.2) |
| Unknown | 28 781 (17.7) | 51 575 (17.8) |
| Cohabitation status | | |
| Cohabiting | 80 398 (49.7) | 142 777 (49.6) |
| Living alone | 34 067 (21.0) | 61 032 (21.2) |
| Children living at home | 32 078 (19.8) | 57 327 (19.9) |
| Children not living at home | 15 358 (9.5) | 26 701 (9.3) |
| Family income | | |
| Low | 55 095 (34.0) | 93 870 (32.6) |
| Medium | 54 032 (33.4) | 95 464 (33.2) |
| High | 52 774 (32.6) | 98 503 (34.2) |
| Ethnic group | | |
| Danish | 146 473 (90.5) | 262 050 (91.0) |
| Immigrant | 12 146 (7.5) | 20 485 (7.1) |
| Descendants of immigrants | 3282 (2.0) | 5302 (1.9) |
| Calendar time | | |
| January 2011–December 2015 | 54 282 (33.5) | 98 532 (34.2) |
| January 2016–December 2016 | 61 822 (38.2) | 106 132 (36.9) |
| January 2017–December 2017 | 45 797 (28.3) | 83 173 (28.9) |
| Number of chronic conditions | | |
| 0 | 127 580 (78.8) | 226 628 (78.7) |
| 1–2 | 27 787 (17.2) | 49 416 (17.2) |
| ≥3 | 6534 (4.0) | 11 793 (4.1) |