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Table 5 Factor loadings and assignment of items to subscales: adolescents

From: Development and validation of a tool for the assessment of benefit from treatment of allergic rhinitis in children and adolescents (PBI-AR-K)

 

Factor1

Factor 2b

Factor 3c

Factor 4c

Factor 5b

Items in subscale 1 (‘treatment burden’): Cronbach's alpha = 0.819

 06) have an easily applicable treatment

0.790

    

 11) need less time for treatment

0.762

    

 17) not to have to go to the doctor so often

0.703

    

 18) have a comfortable treatment

0.802

    

 19) have fewer side effectsa

0.516

  

0.541

 

Items in subscale 2 (‘physical symptoms’): Cronbach's alpha = 0.844

 01) no longer have to sneeze

 

0.531

   

 02) no longer have a runny or stuffy nose

 

0.880

   

 03) be able to breathe through your nose freely

 

0.846

   

 05) be able to stay outdoors without symptoms

 

0.465

 

0.396

0.460

 07) not have itching on the eyes, nose or throat anymore

    

0.799

 08) not have burning or watery eyes anymore

    

0.837

 09) no longer have hay fever symptoms

 

0.509

  

0.503

Items in subscale 3 (‘psychosocial burden’): Cronbach's alpha = 0.786

 04) feel less tired or groggy

 

0.368

0.616

  

 10) be able to sleep better

 

0.385

0.723

  

 12) feel well even with having hay fever

0.303

  

0.730

 

 13) be able to do anything you want in your free time even while having hay fever

   

0.858

 

 14) feel more comfortable being around other people

  

0.559

0.527

 

 15) be focused at school

  

0.772

  

 16) not be excluded by others

  

0.703

  
  1. N = 103; loadings < 0.3 not shown; in bold: highest loading of the respective item
  2. aitem 19 loaded highly on both factor 1 and factor 4. For content-related reasons, it was assigned to subscale 1 for which the loading was second highest
  3. bitems with highest loadings on factor 2 or factor 5 were both assigned to subscale 2 for content-related reasons
  4. citems with highest loadings on factor 3 or factor 4 were both assigned to subscale 3 for content-related reasons