442A scoping review to identify physical activity cohort studies for the Physical Activity Cohort Repository (PACe)

Background The Physical Activity Cohort Repository (PACe) project was initiated by the Epidemiology Council of the International Society of Physical Activity (ISPAH). The project will create a central database of cohort studies with at least 1,000 participants that have collected data on physical activity (self-reported and/or accelerometer measures) at three or more timepoints, to facilitate physical activity epidemiology research worldwide. Methods A scoping review commenced in January 2020 to identify relevant cohort studies in PubMed and Web of Science. All titles and abstracts identified in the search were screened, and data are to be extracted by two authors. Data to be extracted include: cohort size; location; years of baseline recruitment; broad demographics of the cohort; how and when physical activity was measured; clinical measures; biological samples; cohort profile publication; and information on how to request access to the data (if applicable). Results Our scoping search identified 8,992 articles. From the 851 papers from studies meeting the eligibility criteria, we have identified 409 unique cohort studies. We anticipate having the PACe online database completed and accessible by the end of 2021. Conclusions The PACe will help to maximize the investments made into cohort studies, by encouraging researchers to return to mature cohorts and apply contemporary methods to physical activity-related research questions. The PACe will also facilitate international collaborations and help build capacity in low- and middle-income countries. Key messages The PACe will be a searchable catalogue of cohort studies that have included self-reported and/or accelerometer measures of physical activity.