I meant to post this study earlier.
Body Mass Index and Risk for COVID-19–Related Hospitalization, Intensive Care Unit Admission, Invasive Mechanical Ventilation, and Death — United States, March–December 2020. (2021).
https://www.cdc.gov/mmwr/volumes/70/wr/mm7010e4.htm
ARR for death is 2.01 under 65 for BMI > 45
ARR for death is 1.50 over 65 for BMI > 45