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. 2012 Sep 19;12:146. doi: 10.1186/1471-2288-12-146

Table 2.

An example of intervention related group (IRG) identification

  Setting 1 Setting 2 Setting 3 IRG
Intervention 1
 Yes
 Yes
 No
 3 IRG :
 
  
  
  
 2 IRG-Active
 
  
  
  
 1 IRG-Control
Intervention 2
 No
 No
 Yes
 3 IRG :
 
  
  
  
 1 IRG-Active
 
  
  
  
 2 IRGs-Control
  IRG
 2 IRG :
 2 IRG:
 2 IRG :
 6 IRG :
 
 1 IRG-Active
 1 IRG-Active
 1 IRG-Active
 3 IRG-Active
  1 IRG-Control 1 IRG-Control 1 IRG-Control 3 IRG-Control