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  Number Needed to Treat (NNT) from Odds Ratio (OR) and Patient Expected Event Rate (PEER)

 
NNT = (1 - (PEER * (1 - OR))) / (PEER * (1 - PEER) * (1 - OR))

 
Input:
 
PEER  
OR  
Result:
 
NNT  
 
Decimal Precision  

 
     
 
Include literature references: Yes   No
 

 
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