vii ABSTACT ASSOCIATION OF AGE, SEX, AND COMORBIDITIES WITH LENGTH OF STAY AND OUTCOMES IN MODERATE COVID-19 PATIENTS AT ARIFIN ACHMAD REGIONAL GENERAL HOSPITAL OF RIAU PROVINCE IN 2021 By: RIO SATRIA SARS-COV-2 is known to be the most responsible for COVID-19 disease, if infected with this virus various clinical symptoms can be caused, which can then be classified into mild, moderate, sev…