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Table 3 Correlations between malaria transmission markers in 2013 at 0.9 km resolution

From: Malaria hotspots defined by clinical malaria, asymptomatic carriage, PCR and vector numbers in a low transmission area on the Kenyan Coast

  Clinical malaria cases Positive blood films Positive PCR tests Anti-AMA1 antibody titres Anti-MSP1-19 antibody titres Anopheles mosquitoes captured
Clinical malaria cases 1      
266      
Positive blood films −0.0165 1     
266 292     
0.7884      
Positive PCR tests 0.057 0.3295 1    
266 292 292    
0.3544 <0.0001     
Anti-AMA1 antibody titres −0.0339 0.0516 0.002 1   
22 22 22 22   
0.8808 0.8196 0.9931    
Anti-MSP1-19 antibody titres −0.2376 0.0172 −0.0773 −0.0627 1  
22 22 22 22 22  
0.2869 0.9394 0.7323 0.7817   
Anopheles mosquitoes captured 0.1693 −0.0343 0.116 0.1943 0.583 1
87 87 87 12 12 90
0.1169 0.7527 0.2846 0.5451 0.0467  
  1. All markers are expressed as average per cell of a 0.9 km resolution grid superimposed on the study area. Positive blood films, positive PCR tests and Anopheles mosquitoes captured are expressed as mean/grid cell. Antibody titres are expressed as weighted geometric mean/grid cell. Clinical malaria cases are expressed as weighted mean/grid cell. For each pair of markers the table reports from top to bottom the correlation coefficient (rs), the number of grid cells (n) and the p value for rs