Study population and Design
This retrospective cohort study included adult inpatients (≥18 years old) from Aga Khan University Hospital, a 700 bedded tertiary academic medical center in Karachi Pakistan. All adult patients who were diagnosed with COVID-19 based on PCR positivity for SARS-Cov-2, and those who died or were discharged between Feb, 2020 and June, 2020, were included in our study.