We have previously examined in large research databases the risk factors for DKA as well as the use of blood ketone testing to identify those at greatest future DKA risk. In this part of the research project, we are seeking research participants with T1D to review existing education tools for DKA and co-create with us a better, clearer, more ‘user-friendly’ education tool by sharing your experiences and opinions during two 3-hour video calls within a day.