Table 2. ABO and RhD blood group distributions for the Caucasian convalescent plasma donors compared with Factsbook reference frequencies.

Group	Antigen	Observed prevalence	CI 95%	FactsBook prevalence	p-value†
All donors (n = 90)	A	0.456	[0.357–0.558]	0.430	0.569
	AB	0.089	[0.046–0.166]	0.040	0.018
	B	0.100	[0.054–0.179]	0.090	0.741
	O	0.356	[0.264–0.458]	0.440	0.110
	D-	0.178	[0.112–0.269]	0.150	0.459
	D+	0.822	[0.731–0.888]	0.850	0.459
FY*A/*A individuals (n = 23)	A	0.435	[0.256–0.632]	0.430	0.960
	AB	0.130	[0.045–0.321]	0.040	0.028
	B	0.130	[0.045–0.321]	0.090	0.503
	O	0.304	[0.156–0.509]	0.440	0.190

^†Bold p values represents a significant p value of <0.05.