Malaria Journal

Table 1 Placental malaria* and ABO phenotype by parity in different studies

From: ABO blood group and the risk of placental malaria in sub-Saharan Africa

		Primiparae			Multiparae			All
	ABO	N	Plac. Pos.*	%	N	Plac. Pos.*	%	N	Plac. Pos.*	%
Loscertales et al.	A	16	6	37.5	22	6	27.3	38	12	31.6
Senga et al.	A	51	5	9.8	95	21	22.1	146	26	17.8
Adam et al.	A	31	2	6.5	51	5	9.8	82	7	8.5
Present study	A	18	3	16.7	59	2	3.4	77	5	6.5
Loscertales et al.	B	20	6	30.0	32	11	34.4	52	17	32.7
Senga et al.	B	50	11	22.0	111	22	19.8	161	33	20.5
Adam et al.	B	24	0	0	35	2	5.7	59	2	3.4
Present study	B	14	1	7.1	40	6	15.0	54	7	13.0
Loscertales et al.	AB	2	0	0	4	2	50.0	6	2	33.3
Senga et al.	AB	6	1	16.7	15	5	33.3	21	6	28.6
Adam et al.	AB	8	1	12.5	16	0	0	24	1	4.2
Present study	AB	2	0	0	7	1	14.3	9	1	11.1
Loscertales et al.	O	50	29	58.0	52	14	26.9	102	43	42.2
Senga et al.	O	96	28	29.1	213	30	14.1	309	58	18.8
Adam et al.	O	51	0	0	77	2	2.6	128	2	1.6
Present study	O	50	2	4.0	188	12	6.4	238	14	5.9
Loscertales et al.	All	88	41	46.6	110	33	30.0	198	74	37.4
Senga et al.	All	203	45	22.2	434	78	18.0	637	123	19.3
Adam et al.	All	114	3	2.6	179	9	5.0	293	12	4.1
Present study	All	84	6	7.1	294	21	7.1	378	27	7.1

*Acute infection (parasites present without pigment) or chronic infection (parasites present with pigment).

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