Probability Calculator
Probability Calculator
Post Test Probability Calculator
Input pretest probability without a percentage sign. e.g. input 95% as 95.
Pre-Test Odds = P/(1 - P)
Post-Test Odds = Pre-Test Odds * LR
Likelihood Ratio Calculator
If you don't know the LRs then input the sensitivity and specificity without the % sign (e.g 70 for 70%)
LR+ = sensitivity / 1 - specificity
LR- = 1- sensitivity / specificity
