Table 3.

Effect of the timing of malaria infections on maternal anemia at delivery^*

Malaria infection	% of maternal anemia after MICE	Univariate analysis†			Multivariate‡ analysis†
		OR	95% CI	P	aOR	95% CI	P
0–4 months of gestation
Positive (N = 133)	55.6	1.7	[1.1, 2.6]	< 0.01§	1.6	[1.05, 2.5]	0.03§
Negative (N = 425)	41.8
5–6 months of gestation
Positive (N = 126)	51.3	1.4	[0.9, 2.1]	0.15	1.1	[0.7, 1.7]	0.62
Negative (N = 669)	43.6
> 6 months of gestation
Positive (N = 400)	51.8	1.9	[1.4, 2.7]	< 0.001§	1.7	[1.3, 2.4]	0.001§
Negative (N = 380)	35.9

^*MICE = method of multiple imputation by chain equations; OR = odds ratio; aOR = adjusted odds ratio; CI = confidence interval.

^†Reference class is Negative malaria infection.

^‡Adjusted for parity, newborn's sex, rainy season at delivery, maternal BMI, education, duration of gestation, number of SP intakes, number of consultations, use of bed net, and HIV status.

^§Statistically significant results (P < 0.05).