Disability of older industrial workers/ influence of individual characteristics, e.g. experienced physical weight of work, experience of work and personal well-being, on long-term absence from work and disability to work. Ability to work / nature of illness / duration of absence / working situation in past and present / kind of occupation / why this kind of work / other occupations / reschooling / unemployment and duration of unemployment / disability to work / duration of disability / working conditions in past and present inconvenience of work / present working conditions inconvenience of present job / autonomy in job / monotonous or varying job / opportunities for promotion, training / preferred working conditions, cooperation / varying job / autonomy in work / opportunities for promotion, training/ schooling / possibilities for self-development / working for money / meaningfulness of work / work that brings sense of security / status of work / interesting work / appreciation of work done / satisfaction about work done / changes in work and working conditions organization changes: e.g. fusion, internal reorganization / technical changes, changes in machinery, apparatus / expectation of changes in working situation within next two years / work satisfaction / income / possibilities on labour-market as seen by r / work orientation / ideology of work / personal well-being / drastic changes in personal life / youth and situation in parental family / situation in family. Background variables: basic characteristics/ housing situation/ household characteristics/ place of work/ occupation/employment/ income/capital assets/ education/ organizational membership