Assessment of Overall Functioning in Patients With Complex Health Issues

The overall aim of the study is to assess whether each outcome measures the same aspect of overall functioning or contributes with different aspects. More specifically, the aim of this study is to investigate the correlation between each single instrument. During study period all patients presenting at our clinic will be offered to participate in the study. Patients will be included in the study when referred to the department of Social Medicine and providing written informed consent to participate in the study. Inclusion will continue until 100 patients have completed an AMPS test. All participants will, apart from standard procedure, be asked to complete: * An AMPS-test * ADL-Q (Questionnaire concerning Activities of Daily Living) * ADL-I (Interview based questionnaire concerning Activites of Daily Living) As standard procedure all participants will also perform/complete: * 30 seconds chair stand test (30sCST) * Hand grip strength (HGS) * Evaluation of ambulation (Cumulated Ambulation Score /CAS) * WORQ (Work Rehabilitation Questionnaire) To obtain the aim of the study correlation-analysis will be performed to investigate the relationship between each included instruments.