“…These have been joined by data analysis techniques, which from simple statistical analysis (14-16) used in diagnostics have evolved to support various areas of Public Health such as resource management (17,18), health care processes (19)(20)(21), and the study of hospitalization (22)(23)(24). Also on the COVID-19 topic, several studies have shown the effectiveness of these techniques (25,26). To investigate our hypothesis, we analyzed data from patients admitted to the hospital for HF before and during the pandemic: we collected data from their electronic records, then we evaluated the likelihood of in-hospital death.…”