The Effectiveness of Health Advice and Occupational Health Intervention on Work Ability

Study hypotheses were 1) Classification of the risk of sickness absence can be made with questionnaires addressing self-rated health problems; 2) Occupational health intervention of the employees at \'High Risk´ of sickness absence is more effective than usual care in controlling sickness absence; 3) Health advice intervention of the employees at \'Increased Risk´ of sickness absence is more effective than usual care in controlling sickness absence; 4) The interventions are cost-effective use of resources from the societal perspective.