Figure 1From: Malaria incidence and efficacy of intermittent preventive treatment in infants (IPTi)Stratified malaria incidence rates. Malaria incidence rates per PYAR in the placebo group assessed over the period of one year, beginning at the time of recruitment. A, PYAR stratified for the month of birth of the children; B, PYAR stratified for the village of residence of the children. PYAR, person year at risk.Back to article page