Ok but when you are comparing USA with Oceania, arent there quite a lot of factors to consider? For example, it is established that bmi plays a factor in covid

Ok but when you are comparing USA with Oceania, arent there quite a lot of factors to consider? For example, it is established that bmi plays a factor in covid deaths: https://www.cdc.gov/mmwr/volumes/70/wr/mm7010e4.htm https://www.cdc.gov/mmwr/volumes/70/wr/mm7010e4.htm Is the BMI of USA the same as all of Oceania? What other factors are in play as well? Probably a lot I would imagine.