Table 1 Demographic characteristics of the study sample
|  | Respondent who provided consent to use registry data (n = 14,501) | |
|---|---|---|
N | % | |
Age | ||
 <30 | 1828 | 12.6 |
 30–39 | 4072 | 28.1 |
 40–49 | 4375 | 30.2 |
 50–59 | 3300 | 22.8 |
 ≥60 | 926 | 6.4 |
Gender | ||
 Male | 6425 | 44.3 |
 Female | 8076 | 55.7 |
Marital status | ||
 Not married | 1818 | 16.2 |
 Married | 6119 | 54.6 |
 Cohabiting | 2332 | 20.8 |
 Widowed | 89 | 0.8 |
 Divorced | 664 | 5.9 |
 Separated | 180 | 1.6 |
Educational level | ||
 <9 years | 390 | 3.8 |
 10–12 years | 3304 | 32.5 |
 13–16 years | 4423 | 43.5 |
 16 years< | 2043 | 20.1 |
Employment | ||
 Regular full time employment | 10,693 | 91 |
 Time-limited contract | 631 | 5.4 |
 On call staff/ | 352 | 3.0 |
 Other | 70 | 0.6 |
Classification of occupation | ||
 Legislators, senior officials and managers | 1222 | 8.8 |
 Professionals | 3971 | 28.8 |
 Technicians and associate professionals | 3799 | 27.5 |
 Clerks | 762 | 5.5 |
 Service workers and shop and market sales workers | 3245 | 23.5 |
 Craft and related trades workers | 425 | 3.1 |
 Plant and machine operators and assemblers | 50 | 0.4 |
 Elementary occupations | 135 | 1.0 |
 Armed forces and unspecified | 199 | 1.4 |
Work schedule | ||
 Fixed day-time arrangement | 6232 | 44.9 |
 Flexible working-time arrangement | 4451 | 32.1 |
 Fixed evening-arrangement | 291 | 2.1 |
 Fixed night-time arrangement | 151 | 1.1 |
 Shift work arrangement | 2719 | 19.6 |
Leadership responsibility | ||
 No | 8381 | 79.6 |
 Yes, middle-level manager | 1892 | 18 |
 Yes, top-level manager | 258 | 2.4 |