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Table 3 Spatial clusters of households with positive cases more than expected, 2008 and 2009

From: Temporal and spatial patterns of serologic responses to Plasmodium falciparum antigens in a region of declining malaria transmission in southern Zambia

Year Total population in the cluster Observed number of positive cases Expected number of positive cases Relative risk p-value
2008 27 25 21.11 1.44 0.15
2009 34 9 4.59 10.59 0.06