Table 1 Characteristics of the study population (n = 18,936)
From: Socioeconomic differences in healthcare expenditure and utilization in The Netherlands
|  | Participants aged 25–44 years (n = 6274) | Participants aged 45–64 years (n = 8159) | Participants aged 65–79 years (n = 4503) | Total study population (n = 18,936) | ||||
|---|---|---|---|---|---|---|---|---|
| Â | % | n | % | n | % | n | Â % | Â n |
Age in years, mean and SD | 34.8 | 5.8 | 54.6 | 5.7 | 70.8 | 4.1 | 51.9 | 14.6 |
Sex (% female) | 52.1 | 3271 | 50.9 | 4150 | 49.6 | 2235 | 51.0 | 9656 |
Highest obtained educational level (%) | ||||||||
  Low | 3.8 | 237 | 7.4 | 600 | 14.0 | 630 | 7.7 | 1467 |
  Low-moderate | 10.2 | 643 | 18.7 | 1524 | 31.0 | 1395 | 18.8 | 3562 |
  Moderate-high | 41.9 | 2628 | 42.6 | 3478 | 32.3 | 1455 | 39.9 | 7561 |
  High | 44.1 | 2766 | 31.3 | 2557 | 22.7 | 1023 | 33.5 | 6346 |
Year of health survey (%) | ||||||||
  2016 | 31.2 | 1960 | 30.4 | 2481 | 30.3 | 1364 | 30.7 | 5805 |
  2017 | 31.5 | 1978 | 32.4 | 2647 | 36.8 | 1656 | 33.2 | 6281 |
  2018 | 37.2 | 2336 | 37.1 | 3031 | 32.9 | 1483 | 36.2 | 6850 |
Perceived general health (%) | ||||||||
  Very good | 27.2 | 1708 | 19.5 | 1589 | 14.2 | 639 | 20.8 | 3936 |
  Good | 57.0 | 3578 | 53.7 | 4379 | 53.3 | 2399 | 54.7 | 10,356 |
  Moderate | 12.4 | 779 | 20.3 | 1655 | 25.9 | 1165 | 19.0 | 3599 |
  Poor | 2.9 | 180 | 5.6 | 457 | 5.9 | 265 | 4.8 | 902 |
  Very poor | 0.5 | 29 | 1.0 | 79 | 0.8 | 35 | 0.8 | 143 |
Number of physical limitations | ||||||||
  0 | 95.0 | 5963 | 87.7 | 7155 | 81.7 | 3681 | 88.7 | 16,799 |
  1 | 3.3 | 204 | 6.5 | 532 | 9.1 | 410 | 6.1 | 1146 |
  2 or more | 1.7 | 107 | 5.8 | 472 | 9.1 | 412 | 5.2 | 991 |
Mental health (% unhealthy) | 11.1 | 696 | 11.3 | 923 | 8.7 | 394 | 10.6 | 2013 |