1). For the scale construction the same procedure screening library as described above has been used. The indicator for repetitive movements of hands and arms is used as a single item dichotomy, indicating the frequency of repetitive movements as Inhibitors,Modulators,Libraries “never or sometimes” and “often or always”. Other health-related occupational characteristics Types of work schedules are subdivided into two categories: “fixed day work” versus “atypical work” (a.o. night work, rotating shift systems and non-standard daytime shifts). Work schedule flexibility, conceived as the occurrence of sudden schedule changes, is subdivided into “never or sometimes” and “always or often”, while overtime work is also included as a dichotomy consisting of the same categories. Next, subjective job insecurity represents the chance of becoming unemployed as “inexistent to low” versus “very high to medium high”.
Finally, a variable for bullying behaviour is included as a dichotomy, contrasting between “at least sometimes” and “never”, within a reference period of one year. Social and occupational indicators The analyses are performed among women and men separately. Age is included in the models as an independent and controlling variable. The age-categories Inhibitors,Modulators,Libraries correspond to three main periods in a working career: lift-off (16-29 years), a mid-career period (30-49 years) and the end-of-career period (50 years or older). The occupational classification consists of eight categories: un-/semi-schooled workers, schooled manual workers, educational professionals, health care professionals, other professionals, middle managers, higher managers and non-manual routine workers, which is the reference category.
The dimension of credentialed skills is Inhibitors,Modulators,Libraries a constructed indicator, inspired by Parkin’s notion of credentialism [38]. Respondents with no or lower secondary education and those who combine higher secondary education with un-/semi-schooled manual, non-manual routine, educational or healthcare occupations Inhibitors,Modulators,Libraries are classified as lower skilled. Schooled manual workers, professionals and managerial employees with higher secondary educational attainment, as well as manual, non-manual routine, educational and healthcare workers with higher non-university educational attainment are categorised into the semi-skilled-category. Finally, professionals and managerial employees with Inhibitors,Modulators,Libraries non-university higher education and all respondents with a university degree are classified as experts.
Class relations are defined by real economic ownership and its prerogative of strategic policy-making and surveillance authority over employees [29]. In this regard, Clement and Myles [31] suggest to make a distinction between higher managers, who combine strategic decision-making and surveillance Entinostat authorities and supervisors, having no strategic decision-making authority, but only delegated surveillance authority.