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Table 2 Spatial high and low risk clusters of infection with Plasmodium parasites in general and with P. vivax and P. falciparum in Chamkar Sann, Phi and Tun (2016)

From: Identification and characterization of areas of high and low risk for asymptomatic malaria infections at sub-village level in Ratanakiri, Cambodia

Plasmodium Hot-/coldspot X (latitude) Y (longitude) Radius (km) HH Pop Obs Exp RR p value Cluster
CHAMKAR SANN
 MR all spp. Hotspot 13.594419 106.971901 1.920 23 112 15 5.88 4.66 0.009 1
  Coldspot 13.597492 106.992280 0.100 24 120 0 6.30 0 0.016 2
 MR Pv Hotspot 13.594419 106.971901 1.920 23 112 10 3.62 5.70 0.009 1
  Coldspot 13.597303 106.992159 0.110 30 148 0 4.78 0 0.028 2
 Village all spp. Hotspot 13.589826 106.983550 0.064 11 67 12 4.18 4.60 0.013 3
  Coldspot 13.597303 106.992159 0.069 24 120 0 7.48 0 0.001 2
 Village Pf Coldspot 13.597303 106.992159 0.069 24 120 0 1.20 0 0.077 2
 Village Pv Hotspot 13.589801 106.983319 0.034 7 40 8 1.60 9.03 0.010 3
  Coldspot 13.597303 106.992159 0.069 24 120 0 4.79 0 0.013 2
 Field all spp. Hotspot 13.587529 106.970042 2.120 14 89 12 6.17 3.21 0.037 1
  Coldspot 13.593618 106.996415 1.070 19 88 0 6.10 0 0.006 4
 Field Pv Hotspot 13.587529 106.970042 1.800 8 53 10 2.80 7.86 0.004 1
  Coldspot 13.593618 106.996415 1.070 19 88 0 4.65 0 0.032 4
PHI
 MR all spp. Hotspot 13.857136 107.441863 1.600 19 91 16 8.06 2.46 0.004 1
 MR Pv Hotspot 13.868187 107.433554 0.110 7 36 5 1.50 3.99 0.126 2
  Coldspot 13.873097 107.430424 0.550 20 116 0 4.82 0 0.075 3
 MR Pm Hotspot 13.857136 107.441863 1.880 27 140 12 5.32 3.93 < 0.001 1
  Coldspot 13.818306 107.439045 2.920 12 160 1 6.08 0.12 0.043 4
 Village all spp. Hotspot 13.793786 107.446222 0.043 13 63 9 5.35 1.86 0.025 5
 Village Pv Hotspot 13.794348 107.446921 0 15 80 10 3.22 5.02 0.053 6
 Village Pm Hotspot 13.793786 107.446222 0.022 10 48 5 1.66 3.80 0.001 5
 Field all spp. Hotspot 13.857136 107.441863 1.690 24 121 21 12.47 2.18 0.008 1
 Field Pv Hotspot 13.868187 107.433554 0.110 6 33 5 1.51 4 0.144 2
  Coldspot 13.873097 107.430424 0.550 27 120 0 5.48 0 0.022 3
 Field Pm Hotspot 13.857136 107.441863 1.550 18 85 11 4.06 4.28 < 0.001 1
  Coldspot 13.820585 107.436073 2.700 26 115 0 5.49 0 0.031 4
TUN
 MR all spp. Hotspot 13.963290 107.040745 1.340 10 46 11 5.41 2.45 0.096 1
 MR Pf Hotspot 13.963290 107.040745 0 1 2 2 0.06 45.86 0.022 1
 Village Pf Hotspot 13.961924 107.053807 0 1 2 2 0.04 58.71 0.012 2
 Village Pv Hotspot 13.962842 107.053085 0.039 4 27 8 2.62 3.57 0.028 3
 Field all spp. Hotspot 13.963290 107.040745 1.820 19 82 16 10.82 1.76 0.112 1
 Field Pf Hotspot 13.963290 107.040745 0.550 5 17 4 0.33 57.41 < 0.001 1
  1. Clusters with a p value < 0.15 are displayed
  2. MR = only participants’ indicated main residences applied, Village = only coordinates of village houses applied; Field = only coordinates of field houses applied; all spp. = Plasmodium infections in general (all species); Pf = P. falciparum; Pv = P. vivax; Pm= P. malariae; X, Y = coordinates of centre of the cluster in longitude–latitude; HH = amount of households within the cluster; Pop = population within the cluster; Obs = amount of observed cases in the cluster; Exp = amount of expected cases in the cluster; RR = relative risk of getting infected in the cluster; Number = number assigned to the cluster, indicating clusters with (nearly) the same center point