Table 3 Multivariable analysis: blood type versus intubation/death. Referent is blood type A. Also adjusted for sex, primary language, aspirin use, calcium channel blocker use, diagnoses of chronic kidney disease, coronary artery disease, prior stroke and diabetes mellitus, race not reported (referent: white), sex and presence of rhesus factor. Rh +: Rhesus factor positive. Hosmer and Lemeshow goodness of fit p = 0.98

From: Blood type and outcomes in patients with COVID-19

Blood type AOR 95% CI P value
A Ref   
B 0.72 0.42–1.26 0.25
AB 0.78 0.33–1.87 0.58
O 0.77 0.51–1.16 0.21
Rh+ 1.03 0.93–1.86 0.10