In an aggregated form, the classification consisted of six groups of occupationally active persons, and one group of non-active persons as follows: (1) professionals and executives; (2) self-employed; (3) intermediate non-manual employees; (4) assistant non-manual employees; (5) manual workers in industry; (6) manual workers in service; (7) unemployed, including students, retired and housewives.
unskilled manual, skilled manual workers, assistant non-manual, intermediate non-manual employees, professionals, other higher non-manual employees and upper-level executives, self-employed, farmers, and others).
The cumulative incidence of diabetes, when taking into account death as a competing event, was 11% in high officials, 12% in intermediate non-manual employees, 14% in assistant non-manual employees, 14% in skilled workers, and 16% in unskilled and semi-skilled workers.
Smoking was categorised into two strata (never smokers and ever smokers) and occupational class was categorised into seven strata (unskilled manual workers, skilled manual workers, assistant nonmanual employees, intermediate nonmanual employees, higher nonmanual employees, self-employed and farmers).
The general practice patients (study A) had mean 4DSQ scores intermediate between the employees and the selected samples of the studies C through J.
Smoking was categorised into two strata (never smokers and ever smokers) and occupational class was categorised into seven strata (unskilled manual workers, skilled manual workers, assistant non-manual employees, intermediate non-manual employees, higher non-manual employees, self-employed and farmers).
In the same model, the relative risk associated with socio-economic status was 1.06 (95% CI 1.00 1.13), when comparing senior and intermediate-level salaried employees to unskilled and semi-skilled workers.
We categorized socio-economic status into six levels according to Swedish classification (unskilled and semi-skilled workers, skilled workers, junior salaried employees, intermediate-level and senior salaried employees, farmers, and entrepreneurs), based on the occupational title, as described in detail elsewhere (Official Statistics of Sweden, 1995).
Among them, "No professional activity" was the lower level; "Farmers", "Craftsmen, businessmen, business owners", "Intermediate professions", "Office employees", and "Labors" were combined to form an intermediate level; "Upper level management and higher-level professions" composed the upper level.
The Cosali cohort also had five participants with CTS employed in jobs that could not be assigned to a specific type of work based on their job titles: employee, employee of public sector, intermediate sector.
There are still more intermediate steps, like arbitration, before employees even consider a strike.
