China
Descriptive (Case report/series)
Medical records
206
Patients died due to COVID-19 in Wuhan Jinyintan Hospital. Controls (Wuhan Area) N=3694
none
0
COVID-19 (death)
Patient characteristics
ABO blood group
Persons with other than A blood group
121
2627
A blood group
85
1273
Odds ratio
1.480 (1.110-1.970)
No
Yes
random effects model
Average