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Table 2 Principal components analysis, varimax rotation, loadings > 0.4

From: Explaining variation in the uptake of HPV vaccination in England

  Communalities PC1 PC2 PC3 PC4
Deprivation      
   Average IMD score 0.96   0.94   
   Average rank 0.94   0.92   
   Extent, % 0.93   0.93   
   Local concentration 0.83   0.90   
Cervical screening, ages 25-49 year 0.74 0.43   0.55  
Childhood immunisation      
   DT/IPV, age 5 0.82 0.83    
   DTaP/IPV, age 5 0.88 0.89    
   MMR1, age 5 0.89 0.92    
   MMR2, age 5 0.89 0.91    
   DTaP/IPV/Hib, age 2 0.85 0.89    
   MMR, age 2 0.87 0.92    
   MenC, age 2 0.74 0.83    
Chlamydia: positive test results 0.65   0.55 0.56  
Ethnic composition      
   White 0.93 0.42   0.81  
   Asian 0.82    -0.85  
   Black 0.79 -0.67   -0.51  
   Other 0.74 -0.50   -0.62  
QOF scores      
   QOF Clinical 0.58     0.61
   QOF Organisation 0.83     0.91
   QOF Patient experience 0.66     0.73
   QOF Additional services 0.84     0.76
% of variance explained   32.7 19.9 15.4 13.9