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Table 2 Correlations between malaria transmission markers in 2012 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 0.2672 1     
266 292     
<0.0001      
Positive PCR tests 0.0328 0.5114 1    
266 292 292    
0.5944 <0.0001     
Anti-AMA1 antibody titres 0.0215 0.2927 0.5413 1   
41 42 42 43   
0.8937 0.06 0.0002    
Anti-MSP1-19 antibody titres −0.0444 0.3509 0.5745 0.6338 1  
41 42 42 43 43  
0.7828 0.0227 0.0001 <0.0001   
Anopheles mosquitoes captured 0.0929   0.0648 −0.2398 −0.0218 1
87 87 87 20 20 90
0.3923   0.5513 0.3086 0.9272  
  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