Figure 2
From: Analysis of partial and complete protection in malaria cohort studies
Time to first malaria episode according to place of residence. Figures show Kaplan-Meier estimate of time to first malaria episode in urban and rural areas for A) Navrongo and B) Kintampo cohorts. Tables show number of children remaining at risk at 6-month intervals. For clarity of presentation, the three rural areas in Navrongo (rocky highland, lowland rural, irrigated rural) were combined. Malaria incidence rates on the same time scale are shown in the Additional files.