DEL in China: the D antigen among serologic RhD-negative individuals

Table 5 Asian type DEL (RHDDEL1*) in serologic RhD-negative among Han by PCR-SSP only

Regions in China	Province/city	RhD-negative individuals (n)	G1227A PCR-SSP (n)		RHDDEL1* frequency^a	References
Regions in China	Province/city	RhD-negative individuals (n)	Negative	Positive	RHDDEL1* frequency^a	References
Southeastern	Zhejiang	143	102	41	28.7%	[101]
Western	Shanxi	2385	1869	516	21.6%	[32, 33]
Western	Shanxi	30	24	6	20.0%	[102]
Total	N/A	2558	1995	563	22.0%	N/A

^aRHD*DEL1 allele frequency among RhD-negative Han individuals: 23.4% ± 3.8% (mean ± SD) for the 3 studies, 20.0%—28.7% (range)
N/A not applicable

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