Before using a diagnostic test, a person's probability of having a certain disease is defined as pre-test probability. Get your test done on the patient, and this will change to post-test probability, with the help of likelihood ratio. So what is it, and what is the difference between post-test odds and probability? All are explained in this video, enjoy!
Contents: 0:16 - Likelihood ratio definition 1:23 - Formula of likelihood ratio 1:59 - Probability vs Odds 3:25 - Odds to probability conversion 3:50 - Solved example 7:30 - Likelihood Nomogram
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