Aims and Objectives To investigate the use of physical restraints in aged care facilities(ACFs)and analyse its associated risk factors. Background Physical restraints have been widely used in ACFs worldwide, but they can cause physical and mental harm to older people. It is important to regulate the use of physical restraint. Design A cross-sectional observational and correlational multicentre study. Methods By convenience sampling method, we selected eight ACFs in four representative regions of Hunan province, China, for this study. The ACF-related information was obtained by interviewing the...