This proposal aims to better understand differences in the return to work (RTW) process for older workers versus younger workers, and for people with mental injury claims versus those with physical injuries. Compensation claims from older workers and for mental health conditions are both increasing, and both these groups are associated with worse wage-replacement and health outcomes. This research project will identify where differences in the RTW process occur among these groups of workers (e.g. differences in offers of work accommodation or physician interactions) . This knowledge will in turn form the basis of policy and program changes that can help reduce the economic and health consequences of work-related injuries among these groups.