Effects of the intervention on the number and types of bed nets by study group.
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HH = household; No = number; ITN = insecticide-treated bed net; A = intervention A (social marketing program of ITNs+free distribution of ITNs to pregnant women in health centres); B = intervention B (social marketing program of ITNs); information on type of bed net was missing in a few cases; n.s. = non significant (p<0.05).