Materials and Methods
This study was conducted retrospectively between March 16 and July 10 in Diyarbakir Gazi Yasargil Training and Research Hospital with the data of patients who received inpatient treatment for Covid-19, obtained from the Hospital Information Management System. This study included 1667 patients who were admitted to the hospital, whose blood group information was registered in the system and who had a positive PCR test result, while patients whose blood group information was not registered in the system and those who had a negative PCR test result were excluded from the study. As the control group, data from the blood group study conducted with 127091 people in our province in 2019 were used.10