Skip to main content

Table 2 Primary spatial-only P. falciparum clusters, their radius, the number of villages and cases contained in the clusters and the significance of the Kulldorff scan statistic in Gezira state from 1999 to 2009

From: The spatial-temporal clustering of Plasmodium falciparum infection over eleven years in Gezira State, The Sudan

Year Number of clusters Number of Villages in cluster Radius of cluster (Km) % Examined inside cluster % P. falciparum cases inside cluster Relative Risk P-Value % P. falciparum positive inside cluster % P. falciparum positive outside cluster
1999 1 25 26.3 28.1 47.8 2.34 0.0001 14.7 6.3
2000 1 19 23.0 21.3 42.6 2.74 0.0001 8.0 2.9
2001 1 20 21.4 23.0 39.7 2.20 0.0004 3.6 1.6
2002 1 26 31.7 29.8 62.8 3.98 0.0001 7.9 2.0
2003 1 24 26.8 27.2 69.4 6.08 0.0001 7.3 1.2
2004 1 1 0.0 1.1 8.4 7.97 0.0001 15.0 1.9
2005 1 6 20.8 6.9 41.1 9.43 0.0001 69.7 7.4
2006 1 17 20.4 19.2 46.5 3.66 0.0001 86.9 23.7
2007 1 1 0.0 1.1 13.0 13.12 0.0001 14.9 1.1
2008 1 7 12.8 7.9 29.0 4.76 0.0001 40.8 8.6
2009 1 1 0.0 1.1 14.5 14.66 0.0001 16.9 1.2
1999-2009 1 24 26.8 27.3 49.2 2.59 0.0001 5.3 2.0