COVID-19, which emerged in China in December 2019, has become a pandemic with its spread to many countries of the world. Although it is suggested that hospital admissions are reduced due to some reasons such as trauma, during COVID-19 pandemic, it is controversial whether in-hospital mortality rates changed. Therefore this multi-centered study aimed to determine how in-hospital mortality effected during the pandemic period according to the specific patient groups.

COVID-19, which emerged in China in December 2019, has become a pandemic with its spread to many countries of the world. Although it is suggested that hospital admissions are reduced due to some reasons such as trauma, during COVID-19 pandemic, it is controversial whether in-hospital mortality rates changed. Therefore this multi-centered study aimed to determine how in-hospital mortality effected during the pandemic period according to the specific patient groups. Thus, in case of a pandemic, it will be a guide in which patient groups healthcare providers should be more careful about.

Inclusion Criteria:

• Deaths, with all required data available, occurred within the study hospitals
• centers Accepted to participate with an informed consent

Exclusion Criteria:

• lack of consent
• lack of data
• deaths occurred outside the study hospitals

All the records of in-hospital mortality will be evaluated