Table 2.

Parasitological and hematological characteristics of pregnant women at delivery in Southern Benin, N=491

Characteristics		No.	Mean or %
Blood smear in peripheral blood (%)	Negative	432	89.8
	Positive	49	10.2
Placenta impression smears (%)	Negative	429	88.6
	Positive	55	11.4
Placental histology † (%)	Negative	438	89.2
	Positive	53	10.8
Placental histology ‡ (%)	Negative	385	78.4
	Positive	106	21.6
Haemoglobin level (g/dL)	Mean	481	11.2 [11.0-11.3]
Anaemia* (%)	No	291	60.5
	Yes	190	39.5
Inflammatory syndrome (%)	No	326	67.2
	Yes	159	32.8

^†Proportion taking account into chronic and active malaria infection

^‡Proportion taking account into past, chronic and active malaria infection

^*Anaemia: haemoglobin level less than 11 g/dL

95% Confidence Interval are in parentheses