Practical considerations

  Prospective Retroprospective

Consideratrion
Weighed diet diary
Estimated diet diary
Checklist / diary		 i
Single 24 hour recall
Repeated 24 hour recall		 i
FFQ Long		 i
FFQ Short
Diet history
  • X = 'yes'
  • ? = 'maybe'
  • $ = Assuming no decline in physical or cognitive function
Sample size < 100 i
X
 i
X
X
  
X
    
X
Sample size 100 - 1000
X
X
X
X
X
X
X
X
Sample size 1000 - 5000  
X
X
 i
X
  
X
X
  
Sample size > 5000           i
X
 i
X
  
Costs: Development Low
X
X
  
X
X
    
X
Costs: Development Medium           i
X
 i
X
  
Costs: Development High
 
              
Administration: Low          
X
X
  
Administration: Medium
X
X
X
 i
X
      
X
Administration: High         i
X
      
Coding/Analysis: Low           i
X
 i
X
  
Coding/Analysis: Medium    
X
X
  
X
  
X
Coding/Analysis: High i
X
 i
X
     i
X
      
Participant burden: Low      
X
   i
X
 i
X
  
Participant burden: Medium    
X
        
X
Participant burden: High  
X
     i
X
      
Participant burden: Very High
X
              
Interviewer burden: Low          
X
X
  
Interviewer burden: Medium
X
X
X
        
X
Interviewer burden: High      
X
X
      

Consideratrion
Weighed diet diary
Estimated diet diary
Checklist / diary		 i
Single 24 hour recall
Repeated 24 hour recall		 i
FFQ Long		 i
FFQ Short
Diet history
Suitable for young children < 8 yr (via proxy) i
X
 i
X
 i
X
 i
X
 i
X
 i
X
 i
X
 i
X
Suitable for older children and adolescents 8-18 yr (self complete)  
X
X
X
X
X
X
X
Suitable for elderly $
X
X
X
X
X
X
X
X
Literacy/numerary required
X
X
X
?
?
 i
?
 i
?
  
Requires individual portion size estimation  
X
  
X
X
      
 

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