Likelihood Ratio of Negative from Raw Data

 
Sensitivity = TruePos / (TruePos + FalseNeg)
Specificity = TrueNeg / (TrueNeg + FalsePos)
LRNeg = (1-Sensitivity) / Specificity

 
Input:
 
True Pos  
False Pos  
True Neg  
False Neg  

 
Results:
 
Sensitivity  
Specificity  
LR Neg  
 
Decimal Precision  
 

 
References
  1. Perera R, Heneghan C. Making sense of diagnostic test likelihood ratios. ACP J Club. 2007 Mar-Apr;146(2):A8-9. PubMed ID: 17335149 PubMed Logo

 

 
 
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