Among patients sicklisted for musculoskeletal complaints, low back pain is the largest diagnose group. Most of these patients also have many other complaints. Previous studies have shown that for low back pain patients a brief intervention at a spine clinic with examination, information, reassurance, and encouragement to engage in physical activity as normal as possible, had significant effect in reducing sick leave. Other studies have shown that multidisciplinary rehabilitation for chronic low back pain has effect on sick leave. A Danish study from Arbeidsmiljøinstituttet report that interdisciplinary treatment for patients sicklisted for musculoskeletal complaints, had effect on socio-economic costs, pain, and function.