ABSTRACT COMPARISON OF HBA1C LEVELS IN SURVIVED AND NON-SURVIVED PATIENTS WITH COVID-19 COMBORBID DIABETES MELLITUS AT THE ARIFIN ACHMAD REGIONAL HOSPITAL OF RIAU PROVINCE By Annisa Viani Khalda Coronavirus Disease-2019, or COVID-19, was caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2), which was contagious and attacked the body through Angiotensin Converting Enzyme-2 …