While only 1 out of 45 COV+ patients who are/were Rh(D) negative died vs. 1 out of 8 COV+ patients who are/were Rh(D) positive died, it needs to also be noted that only 8% of those tested were Rh(D) negative.
The average percentage of Rh(D) negatives in the United States is somewhere around 15%.
See also: