Table 1 Characteristics of participants in the Danish Work Environment Cohort Study 1990-2010
1990 | 1995 | 2000 | 2005 | 2010 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
n | % | n | % | n | % | n | % | n | % | |
Total | 5608 | 100 | 5238 | 100 | 5926 | 100 | 8769 | 100 | 10624 | 100 |
Age (years) | ||||||||||
21–40 | 3078 | 54.9 | 2726 | 52.0 | 2826 | 47.7 | 3401 | 38.8 | 3410 | 32.1 |
40–49 | 1570 | 28.0 | 1469 | 28.0 | 1567 | 26.4 | 2595 | 29.6 | 3323 | 31.1 |
50–59 | 960 | 17.1 | 922 | 17.6 | 1274 | 21.5 | 2453 | 28.0 | 3242 | 30.5 |
60–69 | 0 | 0 | 121 | 2.3 | 259 | 4,4 | 306 | 3.5 | 649 | 6.1 |
≥ 70 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 0.2 | 0 | 0 |
Gender (women) | 2708 | 48.4 | 2485 | 47.4 | 2804 | 47.3 | 4462 | 50.9 | 5571 | 52.4 |
Socio-economic statusa | ||||||||||
social class I (highest) | 715 | 12.7 | 711 | 13.6 | 898 | 15.2 | 1537 | 17.5 | ||
social class II | 1045 | 18.6 | 800 | 15.3 | 1250 | 21.1 | 2262 | 25.8 | ||
social class III | 1997 | 35.6 | 1912 | 36.5 | 1762 | 29.7 | 2004 | 22.9 | ||
social class IV | 555 | 9.9 | 596 | 11.4 | 705 | 11.9 | 1315 | 15.0 | ||
social class V (lowest) | 1140 | 20.3 | 1041 | 19.9 | 1056 | 17.8 | 1279 | 14.6 | ||
missings | 156 | 2.8 | 178 | 3.4 | 155 | 4.3 | 372 | 4.3 | ||
Self-rated health | ||||||||||
fair, good, or very good | 5528 | 98.6 | 5157 | 98.5 | 5815 | 98.1 | 8538 | 97.4 | 9963 | 93.8 |
very poor or poor | 79 | 1.4 | 77 | 1.5 | 101 | 1.7 | 180 | 2.1 | 322 | 3.0 |
missings | 1 | 0.0 | 4 | 0.1 | 10 | 0.2 | 51 | 0.6 | 339 | 3.2 |
BMI (kg/m2) | ||||||||||
normal (18.5 - < 25) | 4006 | 71.4 | 3474 | 66.3 | 3520 | 59.4 | 4806 | 54.8 | 5365 | 50.5 |
overweight (25- <30) | 1317 | 23.5 | 1437 | 27.4 | 1888 | 31.9 | 2909 | 33.2 | 3640 | 34.3 |
obese (30+) | 260 | 4.6 | 290 | 5.5 | 457 | 7.7 | 901 | 10.3 | 1339 | 12.6 |
missings | 25 | 0.4 | 37 | 0.7 | 61 | 1.0 | 1.7 | 1.7 | 280 | 2.6 |
Smoking | ||||||||||
never | 1954 | 34.8 | 1961 | 37.4 | 2372 | 40.0 | 3807 | 43.4 | 5007 | 47.1 |
former | 1006 | 17.9 | 1078 | 20.6 | 1355 | 22.9 | 2390 | 27.3 | 3069 | 28.9 |
current | 2648 | 47.2 | 2198 | 42.0 | 2190 | 37.0 | 2515 | 28.7 | 2332 | 22.4 |
missings | 0 | 0 | 1 | 0.0 | 9 | 0.2 | 57 | 0.7 | 216 | 2.0 |
Leisure time physical activity (<2 h/wk of light intensity)a | ||||||||||
No | 5015 | 84.6 | 7262 | 82.8 | ||||||
Yes | 895 | 15.1 | 1427 | 16.3 | ||||||
missings | 16 | 0.3 | 80 | 0.9 | ||||||
At least daily fruit or vegetable consumption | ||||||||||
Yes | 4326 | 73.0 | 6721 | 76.6 | 7930 | 74.6 | ||||
No | 1588 | 26.5 | 2019 | 23.0 | 2213 | 20.8 | ||||
missings | 12 | 0,2 | 29 | 0,3 | 481 | 4.5 | ||||