We have a set of routinely collected data of about 10.000 patients with musculoskeletal pain (neck pain, thoracic pain and low back pain). We have collected the data in a primary care physiotherapy practice based on standardized registration forms. We don’t have found any comparable publication. We are not sure what is the best way to analyse this total dataset or in subgroups. Who has any experience in processing routinely collected data? Who has published a paper as result of analysis of routinely collected data in primary care physiotherapy practice?