Table 3.

Fatalities associated with incompatible platelet transfusions reported to the US Food and Drug Administration from 2007 to 2017

Fiscal year	Patient ABO	Platelet ABO	Antibody titer
2015	B	A	Anti-B (1:2048)
2014	A	O	Anti-A (1:2048)
2014	AB	O*	Anti-A and anti-B (1:128)Anti-A and anti-B (1:128)
		O*
2012	A	O†	“High titer”Data not provided
		O†
2011	A‡	O	Anti-A 1:512 for IgM and 1:2048 for IgG25
2008	B‡	O	“High titer”Data not provided.

IgG, immunoglobulin G; IgM, immunoglobulin M.

^*Recipient received 2 units of group O platelets from the same donor.

^†Recipient received 2 units of group O platelets from 2 different donors.

^‡Recipient’s blood group recently changed following ABO-mismatched hematopoietic stem cell transplant.