The objective of the French CORONADO study is to describe accurately the phenotypic characteristics of diabetic patients admitted to hospital for the management of COVID-19 infection. 

The COVID-19 (Coronavirus Disease-2019) infection is a pandemic caused by the coronavirus SARS-CoV2 (Severe Acute Respiratory Syndrome Coronavirus-2) that emerged in December 2019 in the Wuhan region of China.
Since then, it has affected more than 150 countries around the world, including France. The first epidemiological data, mainly from Chinese studies, indicate that diabetes is one of the most frequently observed comorbidities, along with hypertension, in patients suffering from COVID-19.
More importantly, the presence of diabetes on admission is thought to be a prognostic factor for the risk of both intensive care hospitalization and death. Nevertheless, data specific to diabetic disease (type of diabetes, duration of progression, presence of complications) in patients suffering from COVID-19 remain imprecise and patchy, justifying the conduct of a dedicated observational study.
Very quickly this study will make it possible to provide answers to caregivers and diabetic patients regarding the risk factors for COVID-19 infection, but also to assess the prognostic factors of COVID-19 in diabetic patients. Ultimately, this pilot study should also serve as a basis for the development of new studies in the field and the establishment of recommendations for the management of diabetic patients with COVID-19.
 This retrospective and prospective observational study, outside of the French “loi Jardé”, is promoted by the Nantes University Hospital and coordinated by Prof. Bertrand CARIOU. It is supported by the Société Francophone du Diabète, the Société de Pathologie Infectieuse de Langue Française , the Société Française d’Endocrinologie, the Fondation Francophone pour la Recherche sur le Diabète and the Fédération Française des Diabétiques. It takes place in France, both mainland France and overseas, in 68 centres bringing together hospitals of all sizes.

The CORONADO network

 CORONADO is an incredible network that brings together 68 diabetes centres, medical societies and patient associations.  

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