<qa>  What is the goal of the study?Background : The transitional care OMAGE-P combines three best practices recommendations from the French National Authority for Health HAS i a comprehensive review of diagnosis and treatments ii a standardized medical report and iiia patient education program specifically designed for older people with multiple chronic conditions and polypharmacy. This transitional care is implemented in a pilot general hospital with the support of French ministry of Health and Regional Agency for Health of Ile de France . The aim of the study is to assess the impact of the OMAGE P transitional care on the readmissions of non demented older people aged 75 years and over within the 3 months following their discharge to home and its cost-effectiveness . 