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Table 4 Spatial clusters of infection with all Plasmodium infection found (all), P. falciparum (Pf), P. vivax (Pv), P. malariae (Pm) and P. ovale (Po)

From: Spatial clustering and risk factors of malaria infections in Ratanakiri Province, Cambodia

Plasmodium Clusters X Y Radius in km Population Observed Expected Relative risk p-value
all 1 703614 1545020 24,11 1729 180 109,83 2,25 <0,0001
Pf 1 724732 1557240 29,37 2370 124 84,69 2,16 <0,0001
Pv 2 699609 1550260 24,94 1502 101 55,74 2,53 <0,0001
715521 1504000 0,00* 53 9 1,97 4,73 0,044
Pm 1 743049 1511460 29,81 2711 18 9,83 6,82 0,039
Po 1 699783 1551160 31,79 2306 13 5,17 2,51 0,00061
  1. *A single village was selected as an area with an elevated risk to infection, therefor the radius is 0 km.