Agreement of a work-capacity assessment with the World Health Organisation International Classification of Functioning, Disability and Health pain sets and back-to-work predictors.

The degree of agreement between a clinical multi-professional work-capacity assessment and the Comprehensive World Health Organisation International Classification of Functioning, Disability and Health (ICF) Core Sets for chronic pain and risk factors for no return to work was investigated. A review of data records and interviews with team members included measures of body function/structure, activities/participation and environmental factors. Predictors for return to work were reviewed. The team used eight different methods for data collection. Of the 29 categories concerning environmental factors, two were excluded; the methods used were more unstructured, e.g. interviews. The agreement with the 41 predictors of work resumption was high. The clinical work-capacity assessment agreed largely with the Comprehensive ICF Core Sets for the components body function, body structure, activities and participation. Nine categories out of 69 were not included. The clinical work-capacity assessment agreed largely with the Comprehensive ICF Core Sets for chronic pain conditions and with 40 predictors of work resumption. Clinically speaking, however, the current work-capacity assessment lacks on-the-job site evaluations and this most certainly affects reliability. The same is true for ICF, although the structure lacks proper coding for relevant factors found at work.