The study has been approved by the Ethics Committee of Research Institute IDIAP Jordi Gol (P15/047/2015) and by Hospital Universitari Vall d'Hebron Clinical Research Ethics Committee (PR(AG)133-2015). The study will be conducted in compliance with the Declaration of Helsinki. Registry information was collected from the government-run healthcare provider responsible for all inpatient care in Catalonia. All participants will receive written information and thereafter sign informed consent before inclusion, will be selected among the electronic registers from two different health areas in Catalonia, and will be identified by their 10-digit personal identification number assigned to all citizens in Catalonia.