Together with SHARE Switzerland, based at the University of Lausanne, and FORS, we are carrying out a study on the health of the elderly population in Switzerland on behalf of the Federal Office of Public Health. Based on data from the Survey on Health, Ageing and Retirement in Europe (SHARE) prevalences of non-transferable Diseases (NCDs), risk factors, especially health behaviour and prevention, and consequences of a disease on the quality of life and autonomy of those affectedare analyzed. One focus is on social differences in prevalences, but in particular also in the course of disease, in the supply of health services and in the consequences of NCDs for the life of the affected persons. In addition to classic inequality factors such as gender, socio-economic background and migration, the family and social situation (e.g. loneliness) will also be considered. The aim is to identify factors that have a benefitial or a detrimential effect on the course of a disease, especially with regard to the subjective quality of life.