A formal consensus process integrating evidence and expert opinion based on the ICF framework and classification led to the definition of ICF Core Sets for low back pain. Both the Comprehensive ICF Core Set and the Brief ICF Core Set were defined.

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The fact that illness representations turn out to be predictors of outcome, even when the baseline health status is statistically controlled, highlights the relevance of the illness representations of patients with fibromyalgia. Therefore, effective and efficient methods should be developed for integrating patient's illness beliefs into the management of the illness as early as possible.

The indicator system presented is a starting-point for comprehensive, comparative measurement of the quality of in-patient rehabilitation centres that, with regard to its principles, also appears applicable to other areas of health care.